One thing that seems to be commonly overlooked is the leg geometry.
Throne height can play a big part in this. 1/4" difference can change your
whole geometry. Say at the practice space you have a heavy knapp carpet.
This causes your throne legs to sink in a little. Then on stage you find
yourself on a hard surface with a thin indoor outdoor carpet. This can be
a significant factor.
If you feel an area of muscles in your leg heat up quicker than normal,
you may need to adjust the throne a little. You don't want to have to
pick up your leg to throw it down.
The idea is to get on the ball of foot where it would typically rest on the
pedal. And adjust the height of your throne so that there is a natural
spring in your leg. This is the zone for correct range of motion.
Some additional adjustment may need to be made further on for
personal comfort. But this is the best place to start for me.
The best way to describe it: Is when your sitting in a chair and you
experiment with your heel up and try to find that spot where you
leg will involuntarily start to bounce on it's own. This is the area your
looking for.
I find that if the top of my thigh is working harder than usual, then I
need to raise my throne slightly. If the bottom of my thigh near where
it meets the seat; if that area is working harder, then I need to
lower my throne slightly.
Setting up from this stage down can give you a more proof positive
result for additional kick pedal adjustments.