Idk if my info is relevant, but my classic valve likes the field strip only snug, like the rubber urethane washer makes contact and then like an eighth of a turn more.
My x valve likes the field strip screw about as tight as I can possibly get it with my fingers.
The valve and body don't seem to align well unless I really tighten it down on the x valve.
I have read on this forum that some people have to tighten their x valve with a wrench, but that scared me and I wouldn't do it. Not with as many helicoiled valves floating around.
Jim
yes, i could have purchased something new for the same money.