Its time to replace the lines in my Garhauer rigid boom vang. Silly me, I thought Garhauer would have an owner’s manual AND be able to tell me fairly closely what length lines to buy. Or at least one or the other. Boy was I ever wrong. They don’t have an owner’s manual and the guy on the phone told me one 30’ line and one 40’ line. He did tell me to get 5/16” line. When I questioned the 30’ line his reply was 20’ might be enough and I could always cut it. He’s right but dang. 10’ of waste seems excessive. The best I can tell I have a RV16-1 since my boat is 26’ long. Does anyone have any real life experience with how much line to buy?