Here are out 2 seaplane twins.

Grumman Widgeon, 2 Magnum .52 4-strokes, ~60" span. It is pretty snappy and I snapped it into the water turning in to land. Not too much damage and Flaps has it in the queue to fix.

Dornier Do-18, Magnum .80 4-stroke tractor and Magnum .30 pusher, ~80 inch span. Not yet test flown.

As you said, it gets addictive. Once you try one, you can't stop.

By the way, where was the guy who has the supersonic delta twin with 2 piped, rear exhaust engines? I wanted to see that little thing fly. Also has a Twin Fuselage Kaos. I wanted to take pictures of that one since I have a Kaos I am not flying so I can buy another one, extend the wing and use both fuselages.