My friend (we do not have the same schedule) told me he will finally add a fin. "A big hatchet fin", he said.  The way he describes it, he buries the rail to take advantage of the rather full outline of this surf SUP.  My personal experience is I found a 27" wide 12-6 gun shape worked much better than a 31" wide, 10' nose rider. 

AND, I was lead to believe an old sailboard with a centerboard would rocket upwind. I bought BIC cheap and parked it. It was very heavy and had (to my eye) too much nose kick so the 12' OA was quite a bit shorter.  I also used it with booties -a mistake for me- due to nerve issues; I need direct contact with my feet to feel what is happening. 

One day - I will get some pics.  He's done about his fourth session and now has foil-fever. 

Jim