Replying to Home Made Twin Tip water skis...

Ha, so at camp me and my friends tried to make this by just using peices of would, that we sand and cut down and they worked very badly firstly because they were completly flat so it wasnt really a twin tip but it we could ride switch but it was kinda gay. we tried 1's and 3's but that didnt turn out so well. Any experience with this? ahah because this is such a common field. There was a thread probably a couple weeks ago with actually twintip water skis but do you guys have any advice for making them?