[Perfectlap]

I have never done the chop and my window is crystal clear from regular Plexus cleanings and to keep it from getting brittle. If you give it a chance the plastic will remember where to bend over time. The big caveat being not to do this in temps below 65 unless you blast the heat in the cockpit for 15 minutes or so.
I do have to replace the top now but it wasn't from damage near the crease line.
It was actually from some ice that formed on the plastic one winter and like an idiot I chipped away at it. The ice came off in one glacier but it pierced a nickel width hole near the top seam. The canvas is in perfect shape too. Bummer but a glass upgrade would be nice. Just not a top of list thing right now.