I have loads of Susatos whistles (only missing the F# and Ab). Super whistles IMO.
I have one of the original designs (white with the cherry plug), but I don’t play it a lot.
I dropped the volume (and breath pressure) quite a bit by putting a ridge of poster putty in front of the blade of the fipple and the volume is now about the same as the Michael Burke blacktip brass session pro.
+1 (also missing low E, Eb, and below D)
Play them to death. Irish sessions, larger performances, church, recording - love them for volume, consistency, and tuning, and have a real taste for the sound. I’m likely to fill the remaining gaps soon, and would happily go down to low C (blessed with big hands!) if I can get one without keys…
I think the Susati get better as they get lower. My low C (older keyless model) is the most expressive whistle I have. My bent-neck low D (also keyless) is my car/beach whistle but is a nice flutelike whistle in its own right. Susati were my go-to low whistles (low C, low D, low E, F, G, Ab, and A) until I recently got low D, G, and A Burkes which I prefer. Susati have a reputation for volume but my Burke low D is considerably louder than my Susato low D.
I have high C and D Susati which I only use when I need to blast out volume as I don’t like the way they play. The high D in particular is amazingly loud, twice as loud as my Burke “session” high D. I don’t even want to know what Susati higher than D sound like.
I too have old wooden-plug Susati in low G and A, bought around 1980. At that time I also bought a high D, which was very odd in that when it arrived I put it on the electronic tuner and discovered that it was at A-415! I chopped the bottom and carved out the holes to bring it up to A-440, resulting in a HUGE bore high D that’s the loudest D I’ve ever heard.
Photos of these things can be seen on the “photos of your collection” thread.
Now that Susato has developed keys and the bent neck, I’m waiting for them to start making comfortable-to-play REALLY low whistles, like a contrabass D etc.
Bass and Contrabass D, huh? What did Messrs Furey and Overton start? 
Actually, if it didn’t take too much air and had more succesful power than bass recorders do, a bass D whistle with a truly whistle sound (if that makes any sense when whistles are essentially and historically treble instuments!) in the range of the upper part of the cello’s range would make a fantastic sound! I suspect it would take mechnical bellows to power them though - ooooohhhh, am I unintentionally thinking of organ pipes???
I agree, Jim; the old Susato C is a cracking good whistle and more satisfying to play than the standard (wide bore) D.
If I hadn’t come across Susato whistles back in the 90s I would probably never have developed a real interest in playing whistles; they did it for me, and I still think they are good whistles and hard to beat at the price.
I have a bunch of Susato whistles - high D, C, B flat and one piece high D which was my favourite whistle until someone gave me a Jon Swayne blackwood high D. Sweet and loud too. The Susato A is a bit of a disappointment. Does anyone here play a Susato crumhorn?
i have a handfull of them -but never play them any more, they used to be alot cheaper----but they do carry a good tune and are loud
I used to have a high D and C. Didn’t like the shape of the mouthpiece, and sold them. Each to their own! 
Cass.
Cass,
I’m with you, my main complaint is the mouthpiece. I have nothing against the sound or playability, I just don’t like the fat mouthpiece. It is just not comfortable for me.
I’ve compared the Kildare Susato High D with my Burke DBSBT and found them to have very similar construction. I’m not surprised to hear that the composite Burke sounds similar in tone to the Susato.
I have had my Susato for years. It was my first favorite whistle, though it requires an awful lot of air and a rock solid embouchure to not break in the higher register. For that reason I looked into new whistles and discovered the Michael Burke whistles.
I recommended the non-tunable Susato for one of my students since he was so hard on whistles. Those Susatos are tough beasties.
I mentioned above that I recommended a Susato to one of my students for this very reason, but for me I use a Clarke Sweetone as my beater. They’re cheaper to replace and I’m not as hard on my whistles as my 11 year old student. 
Then again, I own a Kildare model Susato, not the Dublin models.
I’m not fond of the Susato high whistles…I don’t like the tone of them. I’ll go with my Sweetone over a Susato any day, especially considering the $50 price difference.
However, I own and love a Susato low D; while the high whistles are lacking in chiff, the low D has plenty of it, and best of all the chiff is pretty controllable. However, the volume on the low D isn’t very much, and I find that at any session I’m drowned out, especially if I’m sitting next to a flute player. I use my Susato pretty much for slow airs, which it performs wonderfully for.
I liked my high-D at first. Then I got in trouble with the people upstairs. Too loud. Now I’m not allowed to play after 11pm, thanks to that darned Susato. I hardly play it any more. I have a wide-bore. Maybe the narrow-bore would have been better. At this point, I’d rather have the money back.
Get a piece of poster tack and plug a little less than half the opening inside the fipple opposite the blade (on the other side of where you blow). It’ll change the tone a little, and it will take some adjusting to get the volume right, but you’ll find that volume cut drastically. I use this trick all the time to play my Susato or Burke brass session in the wee hours of the morning when I should be asleep like the rest of the world. I haven’t woken anybody up yet.
I’m not that fond of Susatos, personally. I can’t really even tell you why, but I just don’t like them that much. I still own a high F, though I rarely play it.
I used to have a high D, but it was just too loud for my tastes. It sounded good, but my playing didn’t, so that didn’t help any. I have a low G now that I play sometimes.
Life without Burkes, Sutatos, Overtons and Gen Bb’s would be much so much harder for me.
I have a Susato D and a low G. I’m afraid I’m not really keen on either.
The D is loud, but IMHO that is all it has going for it.
Many years ago when we did a poll re: inexpensive whistles, Susatos ranked very well among people’s favorites, and also among people’s least favorites. So, there you go–the whistle that divides whistlers like no other.
And, along those lines, I would say that the Susatos get better as they get higher.