I know the board well and also know the fin.. Great board.. Average fin IMO.

I've got a box of more than twenty fins and the fin I'd use is an 8 or 9" dolphin.. It may look boring bit it just works.

I like the fcs tooless fins because of their easy click-in system... and they're pretty cheap at about $60.

Thank you both. David you gave me some advice on the board a few months ago and you were very helpful. It is a great board. I read through an earlier post where you commented on that fcs fin, I mistakenly thought that referenced fins for DW. I will look at it for my application. Also will consider some of the DW fins for downwind opportunities.
Any other opinions on the stock fin or better fins?

The fins I spoke of I have used to do all paddling, DW, flat small surf rtc and I have swapped them between 14ft and 10ft boards as well. Initially I found the wider fins gave me stability but this year I have done a lot more paddling so my balance has improved a bit and I have found either fin to be the same in a straight line. As DJ has mentioned before the fins allow for different directional changes. A wide fin makes turning harder than a Dolphin shape so on a wave of any kind that is not good.
Either way it's fun buying fins so get a collection and see how you go but after you become more skilled your feeling for conditions will change more than a fin will IMO.