I don't think the throw will not be that big. His kites just don't need it.
I would expect it to be big. Greg has a preference for this for his style of riding. I also love it with my Clouds. I recently went from having short throw to really long throw and have found it incredibly beneficial. The immediate benefit is not getting yanked so hard when whipping the kite across the window. You are also able to kill even more power in the kite - to the point where it is fun to try it because you've never seen a kite do that before! But I think the most interesting thing is the options it opens up for kite positioning during turns/manouevres that I just wouldn't try before because the kite would pull too hard.
Yes, and there must be a reason for that, and how would a stopper work? - if there is one.
I'm wondering if it is designed for the Cloud Strutless kites or for general use.
Reasons for long throw described above! I don't know about a stopper ball. My bar that I modified for long throw does not have one as I don't like them. In email exchanges with Greg, he has told me he likes long throw bars for all kites. So I don't think this is Cloud specific, rather it is for people looking for a simple system with long throw.
.uhm. let me modify it. I don't think his kites needs it. I agree though the protos like seen above does in fact have it, but personally I usually ride his kite with pretty tight sheeting. I think.