I would go with the LC even though its $1 more. Mine have been to hell and back and still look close to new. What confuses me is that AGO say they are on close out but if you look for them by manufacturer they arent on close out.
Honestly as far as how fast to move them it all depends on what im tryin to do. Try different speeds until you find what works for what your trying to do.
I also highly recomend Danase's 5" low pro CCS pads.