FCS fins suggestions for this six channel 6'9

Hi im used to futures and would like to buy some fcs fins for this board i just scored off a mate for a bargain. A Little dusty but with a clean should be bright and glossy.

Anyway its a six channel, not deep channels mind you but nice channels. here are a few photos



I mean i have a set of small Tom Carroll aqualines but they might be too small.
However i have heard you want small fins on six channels.
I dont know much about fins i just want the board to handle drops without bogging, as i live near jakes point and that wave and the waves near it are all jacking fast waves.I dont do snaps or anything on my forehand just carves and cutbacks and a few tubes here and there.

My go to starting fin is always a Merrick template (medium for me), That is my baseline. Then, if I want to loosen the board up, I will go to a more upright or smaller fin and if I want more control I will go the opposite direction. It’s impossible for someone to tell you what fins to use in any given board.