Ya I agree 1/4" is to tight to start. I run the mitsubishi belt and I bet 1/2" wouis be more accurate. I spent a lot of time adjusting my second belt the first day after every pull and I seem to have it set properly now. Pain in the ass the first day but it's been worth it so far .
Yes running a boon rocker turbo at 14psi . Ya I see now they need to be just right for tension . I also had it way to tight. 4 days now on second belt. Once they warm up I am guessing the gears / sprockets expand and alot more that I expected that's for sure .