Having a few issues with the board sliding out at speed
useing a 34" with a 6.5 NP V8 and or a 7.2 rs on about 120 lt board I am about 90kg
another problem is getting on the plan I have had this board a good few years but find it takes a lot of wind to get it to plane, once up and going its fine
I am I just getting to old and fat or do I need a bigger fin?
move your harness lines back so there is no pressure on your back hand. This will reduce spinnout.
Also consider a 36 or 38cm fin to improve early planing.
you need a bigger fin for those sails. I use a 37 cm fin with my 120 litre when i rig a 6.6 and a 31 cm with a my 5.3 that i use most the time. But I am looking for a wave board now, my board is way to big for our wind..