By placing the skeg farther back, you will make it more effective. "As far back as it fits" may not be as far back as it at first appears. With the tube for the control rope sticking up (on the P&H skeg I installed) the skeg box needs quite a bit of height in order to fit.

The hardest part of retro-fitting a skeg is getting glass all the way around the skeg-box. This is easiest when the deck is not attached.

> Why do you want it as far back as possible? In the P&H kayaks I´ve seen
> there is plenty of space to move the skeg closer to the stern. But the
> designer did not.

> Is it much more difficult to fit in the skeg afterwards, when you really
> know if you need it? Fritjof