i can see one good thing about diab's idea, ppl would try to get as close as they can to full power because of the difference it would make to shot power. maybe there can be a mix of the two ideas where the line starts and ends steeply, and levels out a bit in the middle. also, the maximum shot power could be increased, so it would be possible to release a more powerful normal shot, but it is a bit risky. maybe even the shot power meter can speed up towards the powerful end?
maybe shot speed could be increased a bit, but at the power end of the meter there is like an inaccurate zone, where it is possible to launch a powerful shot, but it is a little bit inaccurate, but still a viable option for a shot. just throwing up some ideas