yes the chop thing does work, however you can only do that if noone is around as if you do it when people are watching it looks like your control is broken or the boxster is a 2 stage program.
I always feel silly when people watch a porsche converting then you stop half way and get out to finish off. But i done this for around 8 month and now its found its own line and folds perfect. When the hood is up you cant see any marks or lines which is great. the porsche ( chop ) does work.
I like the idea of a bullet hole