I've got a Naish 7'6. It's short and wide. Surfs good but the yaw when paddling is a killer. I've read Colas posts on paddling technique and adjusting stance to reduce yaw on shorter boards. Thats good info but it's going to take a bit of time to learn. I'm thinking I can get a quicker result by changing fins. The board comes standard as a quad. So here's the question. What will make it paddle straighter, A big centre with smaller sides (2+1 longboard setup) or a large thruster set such as shapers S9's?
I reckon the S9's are too big, guessing your a lighter rider. I am 70kgs, ride the Hokua 8"3 and the Shapers S7's are the go.
It should straighten the board if you put foot pressure on the side of the board the paddle passes..
Thanks for the reply Garethg. I'm 85kg but your 8'3 would be a lot harder to stand on than the 7'6. While it's a foot an a bit shorter, it's 2" wider and an inch thicker. So you can see it's got a very curved outline which causes a lot of the yaw.
Where do you like your centre fin in relation to the sides?
Try standing a fraction more forward on the board and use slightly shorter paddle strokes.. Doing this would be better than using big fins IMO .. 
DJ
try s9 centre fin and s7 sidies. a thruster /2 plus should paddle a bit straighter but i wouldn't be expect miracles
A big centre fin set as far back as you can put it in the box will make it paddle straighter .... but harder to turn!
Just a follow up on this post. The main problem I was having with the stock set up was that last paddle stroke to get me on the wave was spinning me off it (due to the yaw of the board, small back fins and no doubt a lack of technique on my part) and I was missing waves.
Stock setup
Me being me, I went to the extreme opposite to try and "fix" the problem trying a heap of different 2+1 and thruster setups. All othe 2+1 setups stopped me spinning off waves on take off but but they all really stiffened the board up a lot. Think losing your power steering in the car. I think it must be due to the channels this board has and I think that's why the stock fins are relatively small.
The thruster setup I tried didn't stop me spinning off the wave and didn't surf any good either. Anyway I finally decided to the board has to be setup with quads, so put a set of Gerry lopez fins in. They stopped me spinning but still felt really stiff. Finally remembered I had a set of GXQ's somewhere. Pulled em out and measured them. About 1/2 inch higher than the stock rears and are set back in the box a bit more. Surfed that setup this morning in some pretty decent head high waves and it felt really good. Still not as loose as the stock fins but I didn't miss any waves due to spin out. Maybe it's just that I'm getting used to the board but think I'll be keeping this fin setup in for awhile now.
