^the SP5000s will trade off much better grip inexchange for treadlife and probably worse snow traction than the Sp A2s.

i used to run the D60 A2s, the old version, and the 5000s have so much more grip which is indicated in it's W speed rating and higher price. although they do have a tread wear rating of 340 which is still high and have held up well if it wasn't for negative camber.