Anchor Trolley Advice for i12s

Posted in the Inflatables forum, but that doesn't seem to be too heavily traveled.

http://www.hobiecat.com/forums/viewtopic.php?f=47&t=36562

My first anchor trolley. Basically looking for any advice or experiences with adding a detachable anchor trolley to an inflatable.

Biggest question is where to place the pulleys since the bow & stern angles are so much sharper than on the plastic boats. Afraid if I put them too far toward the middle the boat won't track straight in the current. The 12" from bow & stern rule doesn't seem to apply well to the i12s.

Thanks for any help!