Hello!
I’ve only been whistling for a few months, and have recently got to the point where I can play for a long time, say 5+ minutes w/out removing fipple from mouth. Only when I do, a stream of spit flows from my lips through the fipple over the bridge and curls around the body of the whistle. And then my fingers start to slip and etc etc…YUK.
Any suggestions on keeping the spittle in my mouth and not on the whistle?
sincerely,
Fibulo 
A half pipeful of G&H irish rope tobacco and I don’t spit for hours!
Try keeping your head up and the whistle level.
Rivers flow downhill.
I remember (some time ago) someone told me about playing the whistle out the side of the mouth rather than the front. I imagine moving the whistle just a bit to the side will help control the saliva.
I’ll admit, I’m a very heavy salivator . It’s safer sticking to metal or PVC rather than wood. At least they are easier to clean.
I also think this “problem” might get better with time and practise. Strengthening mouth muscles and breath support.
That’s really odd. Is the mouthpiece made of some kind of material, like copper, that is making you salivate a lot? Are you tongueing directly on the mouthpiece or putting it too far into your mouth, thereby stimulating your taste buds? I tend to get more drymouth these days, with the air flowing through. Also, I find I have more drool problems if I play just after eating. Maybe wait an hour after a meal before whistling or swimming. What you are describing doesn’t sound like the standard clogging problem to me. It might just be a reaction to having a foreign body in your mouth; I wear a dental appliance at night, and drooled like there was no tomorrow until I got used to it. Maybe time will help.
Robin
I’ve been doing that lately after seeing a guy play low whistle like that. It definitely has reduced the drool factor. I have started playing that way on all my whistles. It’s not hard at all to get used to.