Hi FastGuy !
Really cool float plane video ! I'm going to convert my silhouette as well for floatflying this spring. I was surprized to see how well the short GWS floats worked for it ! Can you possibly post some pics of how you attached the rear strut to the fuselage ? Thanks here is mine flying in the wintertime : http://www.youtube.com/watch?v=HxycJRG0o98