I screw up more than I help, taint no expert by any means.
Denny..... modest as ever,i'm not sure if you'll ever be aware just how much your concise descriptions and clear pictures have helped so many here.(me included)
I don't suppose you know where to get decent quality trim ring clips,I've snapped two of my re-pop ones already(junk!) but knowing you,you probably made your own!
I agree about the rubber seals too,they're a lousy fit.