Ime running the black ones there ok just the threads don't seam to be cut straight at all so you can't get very nice chain tenntion as one crank forward its nice and tight swap it to the other one and its stupidly loose that for one thing really pisses me off, and i no ime not the only person to have this problem.
There not too bad on the scratches, I only have the usual ones not yet had the anodiseing wearing off from my shoes and ive had them a good 4 mounths.
Why not have a look at the money cranks ive heard nothing but good things about thoes and i think they are the same price?
Sam