emu: You're not the only one although I see you have an
M2Z while I have the P so the protectors are a bit different. I quickly tired of the DJI version even though I eventually figured out how to install/uninstall easily. So, I ordered a set of accessories from f/Stop Labs and I really liked that protector BUT, the front tabs both broke off within a month of use. I'm obsessive by nature so I do my best to treat the equipment with respect. Anyway, I emailed f/Stop and they were happy to send me another and it's allegedly on the way. In the mean time, I fixed the original with my plastic welding kit so it's serviceable but I doubt it will last.
Finally, I like the fishing line idea and, your hole location..very ingenious. Give it enough line to clear the aircraft in the case and just lay it on top. Poyfict! Won't be able to miss THAT dangling thing I hope.
Thanks..