I went out and got my Formula cowl to check out the fit from the old to the new. The Formula was a great learning center for the updated U-1 Bud. This hull will be a little more up on it's feet and we should find it to have better cornier speed with more top end speed as well. Prop program is a big plus. I will be making all my own CNC props for 2009. From the data from the 2008 season. TAKE A LOT OF NOTES from what you are doing.