Tuning FX Impact C1 bumper glue

I don't have a set screw with my C1. I just use a small amount of blue Loctite to secure it and have not had any issues with doing this. I remove it after clamping on a heatsink to the valve rod just behind C1 (toothless pliers) by heating it up a little with a Bic lighter for just a short period to soften the Loctite. It unscrews easily doing that.