GYM OWNERS, FIGHTERS Fastest Jumprope?

This goes out to all gym owners and fighters, What is the fastest and best jumprope that is out to buy? A friend of mine Manufactures his own jumpropes and i am going to go out on a limb and say they are the best ever. after being through 10 store bought jump ropes and from breaking them to having them twist up in knots half way through jumping, i can almost assure these ropes are the best, if any big gym owners are interested Life-rope will send you a trial rope to try against your best ropes.

I've got a rope from Rival Boxing that is pretty good.

its all about the price? pm me tell me how much they are in bulk.