P5 behind the seat bottle holder

I was using a profile design RM 10 behind the seat bottle holder on my P5 Six.
Weirdly it sheared off and broke during my recent IM!
Never had any problems with it for years.

Are there any other designs out there that people use on the P5?

i love my Triring… no issues.

TriRig Beta (45) here as well, bought on sale, with Gorilla cages. Zero ejections, digging it.

One more vote for Tririg Beta on my P3 (same seat post design though), although it requires for you to swipe out the seat rail during the install.