yep, that is why I put them at the EXTREME ends of the yak.. if you are going to use it as a drag anchor that makes the most sense and give better stability.

read Joe Hyde's article ( FAOL cites above) and think about whether you are ever going to do a stream where the drag anchor might be of use to you. If you will always be in a lake or pond , a trolley set-up stationed NEAR the extreme ends will be fine.