I went old school and bought a jar of pickles.
Poured out 2 ozs of to shoot down before I went to play. It worked well. No cramps.
Probably a placebo but I did not feel any twinges on my calves..you guys who get calf cramps probably know what I am talking about. You can get them when you are really going all out for a ball. They are like a precursor to a cramp.
Everything felt good.
Please help TT Member BruceD get a wheelchair so he can play tennis again - http://tt.tennis-warehouse.com/showthread.php?t=496820