Beebe said paravane performance is "very sensitive to speed," based upon which hole is used for the tow wire shackle, yet I have found some reason to doubt that the stated speeds shown in his book are correct. For instance, I met a couple of Nordhavn 46 owners who run at 7 knots yet use the "8-knot" hole. I'm curious to know which hole (in a stock Kolstrand unit) people are using and at what boat speed and RPM. Fuel being a bigger issue now, I'm wanting to optimize this; get reasonable stabilization for the least drag. Regards, John "Seahorse" **************Gas prices getting you down? Search AOL Autos for fuel-efficient used cars. (http://autos.aol.com/used?ncid=aolaut00050000000007)