I run 8 speed on my only MTB, an 853 Inbred, seems that after 12 years and 3 bikes the rapidfire (or whatever they are called) are dying as they won't shift up in neat shifts.
The only replacement 8 speed shifters I can find are these thumbies -
Now I haven't ridden a bike with these since the 80's are they gonna be bad? I am a bit of a closet luddite (avid cable discs and middleburn cranks) so the nothing to go wrongness of them appeals.
Bit reluctant to buy 2nd hand cheapie 8 speed off ebay as they are likely worn too.