Had the surprise pleasure of playing in a session in Donegal (at Biddy's,Gleann Colum Cille, ) last year with John McSherry - he currently plays with Coolfin, was a founder member of Lughnasadh and has been described by Donal Lunny as the best living exponent of the uillean pipes.
Don't know about that, but I can say that if I'd known who he was before hand, I'd have left me whistles in me bag!
Adh mór!
Dáithí