Quad fin, reverse Quads or Twinzers?

Hi,

Want some advice i have a 6.6 AQSS flying fish blue surfboard. I have ridden it as a thruster fin set up and recently tried a quad set up but the fins recommended were the Vessel stealth 5 fins, the fronts were 5" and rears 4". i noticed the board to be faster but not a whole lot different from the thruster set up.

I am playing with the idea to try something completely different by doing a reverse quad set up using 3.4" (H) x 3.7" (B) with a long rake as fronts for speed and drive, then putting 4.4’ (H) x 4.3" (B) with an upright rake as rears for sharper turns, i believe this set up will make the board have a lot of drive but be responsive without slipping out.

The other idea is putting the Shapers x Darcy Twinzer Set on the board which does everything a Twinfin does but with added bite and control.

What do you guy think will run better on this type of board or any alternate suggestions. i find i have more limited options because the board takes FCS1.

Thanks

The board i have