They are only legal on my Tcraft after 9 months on dealing with the feds. You can buy the whole Baumann product line from the owner for $500,000 otherwise don't call looking for any parts. Right from the "horses mouth". They perform just like the straight floats I removed. 95-100mph. I just had the plane up in the arctic where I discovered some unseen(at the purchase) corrosion that made me take them off for some reskinning. They will be back on next season.
Jim
Jim