Just listened to Ronan Browne here:
http://www.myspace.com/125375085 playing Port na bPucai
Some of the nicest regulator work I’ve heard ( and I’m the first to admit I haven’t heard as much as I should).
I often don’t like the sound of regulators. They often come off as kind of clunky and ridiculous but Ronan’s work on this piece is lovely.
The good news is I doubt I could ever play them that nicely so still don’t need to upgrade my half set. 
Phew, that was very nearly very expensive! 
Its a shame more people don’t tune and work their regulators better. I can well see why some eschew them altogether. But if you listen to Ronan Browne’s album “The Wynd You Know” you will come to understand what regs are supposed to sound like. His version of the Lament for the Wild Geese is still the best use of regs I’ve ever heard anywhere.
djm
Your right Djm. When I was at the New Zealand Tionol last year I got to play a really well set up and tuned set; and it was a hybrid set by the way. The McKenzie regulators where tuned perfectly and because of this you could achieve some interesting chord structures. This encouraged me to learn how to play and tune them properly. Doc Jones If your interested in CD’s with regulator playing on them I’d recommend Mikie Smyths album, ‘The Wild Keys’.
Cheers L42B
Apart from accompanying the melody, the regulators should also complement the rhythm of the tune. Jerry O’Sullivan is one of the best I’ve heard in this regard.
Thanks much I’ll check it out.
Doc
I would second the Mikie Smyth suggestion. I was just listening to it again last night. It is a regular in my cd player.
There are 5 tracks of Mikie Smyth at the following link: