Something i noticed though is that when people practice they will practice grooves and they will do the whole speed it up to as fast as they can get etc.. but the trick is to sustain that tempo for awhile and thats with every groove. even if every thing you play is at 100 BPM you should still be workin out at 210 + BPM.
something i noticed that helped me fill wise and shedding is that i will have times where i just shed over stuff after i practice and what that works the muscles even harder because of the intensity of it. and i fyou practice for an hour and shed for an hour about every day i guarantee you that you wont be cramping at church. i know because i used to cramp at church alot before i came to Berklee and having to play all the time everyday has helped me to develop more endurance.
