anybody made any home made concaves? know any artices that show u how to do this?

theres an article at wakeskating.com that tells u hwo to build a wakeskate and it does have a bit at the end on adding concave but it didnt makemuch sense to me, i psoted around a bit and ill tell ya if i find anything

incase anyone else reads this ill paste the post i put in at wakeskating.com cuz it has soem good questions on adding concave... <BR>Hey all, <BR>I'm making my own wakeskate and I wanna add concave. I checked out the article and its perfect I jsut don't get the part on adding concave? Has anyone done this and have some tips for me? Where should i add the wood for lifting the edges up? How much concave?

take a look at my photo album on concaved skate building on <a href="http://www.wakeskate.com" target="_blank">www.wakeskate.com</a>