I'm not doubting that they are good shoes and I'm not trying to make Jim look bad. I'm just baffled! Like I said I put in a used set in between the 2 with everything else the same and no issues. then I put the 2nd set and same issue. The first set had xray springs and the 2nd set I used mugen springs. I'm not sure what I'm missing but....I would like to find out if I did something wrong so I don't do it again. Not cheap! But I just don't know what it is.