I changed the boot bumpers for 23 Nm sprung ones as well a while back: I found it to be just the difference needed to be able to properly open the boot with one hand.
Wrap is looking tidy! Inside that is; the picture showing the passenger mirror ... uhhhhmmmm ... shows some room for improvement?

Just kidding you there, don't take it as an insult. I would expect wrapping to be really a case of trial and error isn't it?
If I may add one suggestion: how about some Perlglanz door openers? Not that expensive, easy to install and they will nicely complement your center vents, AC controls and MFSW controls.