Looking at getting a new OTA and want to maximize the upgrade (have a 9.25 SCT now) without replacing the mount.

I am wondering about a 12” truss RC (55#) that would put the entire payload weight (minus counterweights) at 65.5 lbs.  I know the manual states payload max is 65. I also know the distance from the center of the mount also matters.

So the question…. Can I make the 12” work, or should I drop down to a 10” (and 20# less weight)?

I want to stay with the 1500 - 2500 mm focal length.

Thanks for the input.

Best,
Steven