Wide Point Back, Quad fin?

Ok, let me be the first to say, I am an amature at best. What do you think of a board for solid days of up to double overhead, 6’9 x 20 x 2.5, wide point back 2", moderatley flat nose rocker, flipped tail, with a quad fin set up ? I like the idea of having a longer board to get into the wave earlier, and then having it act shorter when turning. The only thing that makes me second guess, is seeing that most step ups seem to have widepoint at the center, or slightly forward. Would the quad set up compensate for the wider hips? Am I out of my mind? I would love to have some degree of reassurance from someone more experienced before committing. Has anyone tried something similar. OR, please tell me I’m very wrong on this concept lol.

The outline looks okay it really depends on your surfing style as it if that board will perform as you want moving the wide point like that you may lose some paddling/planing power but not much… make sure you have enough tail rocker. Also be careful with the nose rocker while you definitely want some for a step up too much will just push the water opposed to gliding. Also if you are a