hay ppl i wanna get some skip springs but i have no idea what ones to get and as most of u agree its a lot of money to spend to get it wrong im trying to decide between 640's and 580's if any 1 has some i can have a go on i would be much great full atm im on s-rex r's wich are 90-110kg but they are getting a bit soft and as 7's dont do the r's any more and the pro energy are way to stiff for me im gunna have to get some skips so im probs gunna have to w8 till i get my job to get them but it dont mean i cant make sure what 1s i want