A brush clamp and a drift sock come in real handy in a 'yak. You can attach either one to the anchor trolley for precise control of drift/holding angle.
I agree with the full-length trolley mod, Dan. You won't use the front half very often but it's handy when you need it. The downside of having an anchor down from the bow is that you risk tangling your hooks in the rope. A LOT. Darn things are hook magnets in a 'yak because you face and cast that way.
