I think you may find either of those too long. When I had a CFX, I had the Leapers 3-12x44 30mm AO full size on it, and that was just about as long as I felt was reasonable. That scope is 13.5" long, the Centerpoint is about an inch longer. That old CFX is currently wearing a 3-10x42 Nikko Stirling Platinum Nighteater, that scope is also around 14.5", but works okay because of the angled front objective. All of this is my long winded way of saying I'd limit my scope length to a max of 13.5" for a CFX. I also feel that 3-12 or so is a near perfect power range for that rifle. Hope that helps, and I'm looking forward to your review when you get your new rifle, especially chrony data. I'll be able to give you some comparison info for a CFX with a Theoben gas ram when the time comes. Later.
Dave
BTW, I also tried a Simmon 44 Mag 6.5-20x44, but also too long. Great scope, though, I have two.