Futura 141 or 155

[adz]

Hi to the SB team. Just want to ask your comments on which board to choose.

I am 90kg, 185cm, in harness and footstraps, flat to small chops in winds 10-18 knots. I have a 120L JP Freeride (69cm wide) and 8.2 NP camberless sail but only planes 20% of the time. I use 44cm freerace fin for the board. Most of the time, I feel enough power in my hands but still slogging. Maybe a bigger/wider board would be the solution.

Any advice on what to get between Futura 141 and 155? Any pros/cons for each size?