Don, it just occurred to me that if you were indeed trying to get the note of a 1/2 fret, you could do it by bending a lower string. So if you wanted an A#, you could bend your D string at the 4th fret. Or if you wanted a D#, you could bend the A string at the 3rd fret.
Dusty T., Northern California
As a musician, you have to keep one foot back in the past and one foot forward into the future.
-- Dizzy Gillespie