Not sure that this is in the right category but I'll ask anyway. I have a portable course on my lake and I'm having a really tough time keeping the buoy arms straight under water. They have a huge bow in them even after adding some extra buoys in the middle of the arms to try and float them a little. I went out a couple days ago to try and get a rough measurement, and according to my math, the course may be as much as 2 feet narrow (mind you my measurements were done on a windy day buy tying string to the boat guide and pulling it to the turn ball and marking it, then measuring it on land). This course is home made so I guess my question is two-fold. Are there any suggestions for keeping the arms straight, and, do companies such as insta-slalom make their arms longer to account for the bending of the arms?