I will pull them both off for a comparison picture to get a better idea. The lengths looks to be about the same. The angle and radius of the trailing edge of the sponsons are definitely different.
I have ridden my buddies hull both with and without the sponsons. It makes the ski feel like two completely different skis. With how drastic the sponsons change the ride of the hull I would imagine that these changes on the new sponsons will make a seriously noticeable difference. Having not ridden mine yet I can't say for sure that the change will be any better or worse, but we all know Rickter has never been one to takes steps backwards.
That's a hard hitter you got. I bet that thing is a blast. Yet the edge is able to rip corners and pretty much be a do it all hull. I road lawlors in surf and it was so powerful so responsive. You could no doubt fw flip that combo, run a race course and shred surf at high speeds with that same ski.
Can you tell me how long is the edge is, from the front of the nose bound rail to the back end of the hull which is in the water in a straight line please. As I have a freestyle ski and it's 66 inches. As my thoughts are that 76 to 78 inches would be a great length for surf ski.