Couple other things to consider since you have tried several boots.
Anti-inflammatory meds: someone else touched on this, I take ibuprofen before I ride most of the time. (more because I am old and beat up rather then swelling/cramping)
Potassium: helps with cramping, take pills or eat bananas
Stretching: what kind of workout/ stretching routine do you do? If none, you might want to look into it.
Last edited by JeffreyCH; 01-24-2013 at 12:10 PM.