ORIGINAL: rslstft
I have an Evolution 26GT in mine (which Horizon seems to have discontinued!?) and fly it exclusively off floats. Other than take off, I rarely fly about 1/2 throttle. Even at take off, I can usually get off the water at about 2/3 throttle. With the stock tank, I can get close to 30 minutes of flying time. Love the combination.
Discontinued? Must have been recently, as I bought one this fall for my H9 Tiger Moth.
Probably is true, tho. Just my luck.