I called and they answered. He told me that the way he mods the shock, the stop remains the same. He absolutely gaurantee's it will not (Can't) touch the fender or wiring harness. He did say if you go past 1.5" with two up you risk bottoming the shock if on a bumpy road. He said if I go 1.25" like I am thinking about, it will have minimal effect and the ride not compromised. He said he thought the ride actually improves untill you get past 1.5". He also told me that if I do it and am not completely satisfiied, he will refund money and send me a new set of stock shocks. If you read the testimonials, it seems legit. I am thinking about doing this. All I am looking for is to get flat footed. HD progressive only give you .75" and nearly $400. This is $175. Not jumping just yet, but I am close. I will wait till I hear some more feedback as I am not a wrench and do not want to make a mistake.