I remember having this problem on my first diatonic but, after learning to play it, I have had no problems since and I had no problem on my Chromatic when I first got it. Were these students starting on a chromatic or had they played a diatonic before?
~~~~~~~~~~~~~~~~~~~~~~~~~~ No, all my students are virgins when they arrive, totally unsullied by diatonics. Seriously, what you seem to be saying Jim is that when you have learned to play hole 2 on a diatonic you can do it on a chromatic. I think that when you have learned the 'difficulty' of hole 2 on anything, you have the automatic technique to tackle it on other harps.
I have been fiddling witha rather nice instrument which Bobbie G set up for me (an A Lee Oskar) I found that I could bend and do all sorts of (to me) weird and wonderful things (yes, even a strangulated overblown making the noise of someone with a strangulated hernia) The fact that I don't bend notes on the chromatic as a part of my regular technique didn't prevent my awarenes of keeping the reed in tune from guiding me to bends on the diatonic. BTW, Howard Levy has nothing to fear from me. Douglas t