apprentice 15e
this is my first plane and i love to fly it i have to drive a good ways from where i live to fly it but i have a very large lake 50yards from my front door im confident enuff now in my flying that i think i can land and take off from water......i was told that if i can land and take off with my plane 5 times back to back on land without bouncing and make it nice and smooth that im ready for the water .....so my question is when i add floats to my apprentice (using float kit from horizon hobbies) will i have to balance the plane? ive never done this before....and my second question is i have a standard 11x8 prop should i switch to a 3 blade 9x7 because of added weight or a different prop or just use the one i have