I took 1 1/4" foam and cut out this skeg. I coated the boat and foam with the water based type of contact cement. This doesn't stick the foam to the boat good enough but it does two things. It keeps the foam from being eaten up by the next coat of the regular type contact cement when it is applyed to the foam and boat, and then you also put this over the other contact cement on the boat. This really sticks the skeg to the boat, but the best thing is that when you want to take the foam skeg off the boat it pulls off like a rubber glove. At least it did for me. Put this on your boat and take it for a paddle to see if it goes strait. If it doesn't, make another one and put it off center a little but. When I works the way you want, mark the area with a market and make a wooden skeg and put it in the same area, only make the skeg thinner for less drag. This completely tamed my boat. I did cut the foam skeg down smaller a couple of times to see if the boat would still track strait and it did but not quite as good. Just an idea.

John