I bought Vikings for the front and back of mine. I had Calvert 90/10s and Calvert single adjustables in the back. My 60ft has improved .02 and now is extremely consistent.... Wish I could say the same for the driver..... I'm still playing with the settings.

Scott

69 Satellite, 3650lb street car... Dunnuck Racing pump gas 440. Best of 10:60@127...