I built this kit, I really like it. This is my 1st seaplane and my question is. On the bottom of the plane is just a sheet of balsa wood as per instructions which will be later all covered with Monocote. Now, Would this thing really float? Should I put foam or something on the bottom or its not nessasary? I'm just curious cause i thought something was needed to put on the bottom so the wood doesent get soaked.