Oof, that sounds rough. I personally haven't experienced this issue on my mini 16.Does anyone else have issues with the strap easily coming undone whenever the lobster claw presses against the metal loop on the top handle?
I love my small Celine 16, but I find that I tend it to hold it top handle more often because I'm afraid of the strap coming off on one end and falling off my shoulder.
Might be worth a shot attaching the lobster claw facing the other way.