I went to a meeting about that play between the upper and lower TMH on the L85's Skippy.......... You get up and say your piece to these shooting team managers, as respectfully as you can (as they're all old long serving Majors who carried a lot of clout!!!!!), and they STILL don't really understand that even if the TMH was almost falling off it wouldn't affect the accuracy! What they really meant was that the shooting team MANAGERS wanted a solid as a rock feeling of firmness in the rifle so that the shooters couldn't use the looseness as a poor excuse for crap shooting!