The problem is when rotating vertical/horizontal on a tripod with a gimbal. I could request tripod collar replacement entirely, but I'm concerned part of it is integrated into the barrel and optics would be impacted.
Guess I'll keep using it for now. I'm curious about what they charged you. A lot depends on what the a7rVI brings. The whole lens was less than $2K so it might be better just to buy another one.
EBH