anyone using a procom magic power rev box or scaryfast powervalve

[joecrack85]

is anyone using either of these or know anything about them. i am interested in finding out if they are any good. i saw both on ebay

[ltrracer]

i actually bought the procom box, i couldnt get it to work with my kick start kit but my buddie put it on his electric start bike and he said it wasnt too bad, he could tell and diff between the lowest and highest settings lol other than that he did really get to ride with it a whole lot