Slowly, very slowly. LOL!
It's been posted here a few times in the past how Crosman's pump cup on the 1377 and others don't match the profile of the valve nose cone. Some have taken to filing down the point for better fit in the cup.
Well, I was recently inside my new all black 760 (Christmas gift from Mrs. Airgunandy) doing a few simple mods. I did another stuffed and shimmed piston and as I went to file down the cone of the valve I realized it had already been done!!!
Maybe next they'll go back to the old flat top piston and brass valve!!!
By the way, in case Crosman IS watching, another mod I did was machine and install a rifled 1760 barrel in the 760 (left over from my 760 build-off and cut to 760 length). Hopefully they'll pick up on that one too. Lots of people looking for rifled barrels for their 760's.
I plink, therefore I am.