At 7 degrees of caster what is the difference in adjustment between your front and rear turnbuckle?I have run -4* with them and not had any rubbing issues, but I am not sure where you would be expecting the rub. I think I could easily get to -5* maxed out. I run around 7* of caster with them. I have enjoyed the arms so far in my use over the last year and half. I do like the quick flip of the ball joint for the quick change in camber. I will say though that after doing probably 12 alignments on the car you need to make sure to use antiseize on all components as they will start to have problems.