hmmmmm that Tundra reminds me of a Sport Cub S2..... which iv read makes for a great seaplane when you add floats. Iv only flown my S2 with wheels and it handles great. These planes look to be close to the same size but the Tundra has a bigger esc then the S2. It looks like it can be sport tuned a little better then the.......Sport Cub X(