I've not seen that with mine. I haven't had to adjust it since I installed it and the machine stays as in-tune as my Boss pedal can read it. Might be that you got a bad one, or might be that I got a good one.
I also don't drop it as often as I thought I would. I guess the thing about multiple tunings is that there are always compromises, either with transposing, multiple instruments, re-tuning, etc.
Originally Posted by obimark
My problem with the D-tuner was, when I switched back and forth it would go slightly out of tune, so when I switched back to E from Drop D many times it would go slightly out of tune, either flat or sharp, then you have to do the adjustment thing, but when you drop back to D you'd have to adjust it again. Real annoying and defeats the purpose if I have to constantly check both tunings with my clip-on tuner, might as well just give the tuning peg a quick turn and a half to drop and use the clip on tuner.