Ok guys I'm trying to pick up time and mph by doing little things best so far is 7.06 at 102 with a 1.62 sixty weighing 3950. My main question is my 3.90s hurting me even just in the 8th mile? Been thinking about going 3.31s to see how they feel. I also do a lot of 40 and 60 rolls curious if going to 3.31s would help me out there as well? Thanks