After riding for a while my gear change seems to deteriorate. For the sake of clarity, by that I mean the pedal action noticeably stiffens, and selecting neutral becomes difficult. Another symptom is that 1st sometimes crunches, or is difficult to select. This is especially so when stationary. When I initially set out for a ride the gear action is noiseless and precise, so it seems fairly clear to me that as the clutch warms up the plates are possibly expanding and causing this problem. I am using ATF by the way. Would backing the springs off a bit help to resolve this problem? and if so how far would they have to be unscrewed? half a turn, or a bit more maybe? I know this a bit like how long is a piece of string, but some guidance would be useful before I go diving in.