one tip i got from a charter captain, was to tilt your rods so that the tips are almost or in the water when making a turn, my guess is that it makes the dipsy run truer.
also, im curious as to why some one would say you need a big boat to run dipsy's? i know people that run them off an 8ft zodiak, if its leader length, thats a non issue, you have a 7-9ft rod, lift it up a tad, shortens the leader length to 7ft or less, take a step back, or have the net person at the back of the boat, and the leader length is a non issue.