Im having a problem putting a Solarforce L2-S3 tailcap onto my Surefire 6P. I screw it down as far as I can get it and it's still about a 1mm from even coming into contact with the o-ring on the body. However the tail cap goes on just fine onto an L2 body. I also have a stock solarforce L2-S1 that will screw down fine onto the 6p body. But I want a forward clickie and for some reason the L2-S3 tailcap doesn't even come close to fitting onto the 6P body. Is it just a matter of too much ano on the threads in the tail cap or for some weird reason was it not meant to fit?