FX bottle sizes

[AKairgunner907]

I'm curious if the 400cc aluminum bottle on the DYNAMIC VP is the same diameter as the 480cc CF bottle. If i buy a VP will the same bottle mounted shoulder pad fit my current cf bottle? I'm guessing they're interchangeable but don't want to find out the hard way if im wrong.
Would a 580 be too long in the back?
Appreciate any info.
Thanks

 

[R_M]

I think not many people have both the 480cc carbon bottle and the 400cc alu version. If someone with aforementioned cf bottle measures the circumference of that bottle and someone else with an alu bottle does the same, you might get an answer.

 

[AKairgunner907]

UA says it will fit both bottles. Has anyone tried a 580cc on the rear of their dynamic? Curious if it's uncomfortable.