Rake - I thought I read that if raked properly the blocks will be nearly touching when hauled in tightly. (they are).

GIving it some thought... laying in bed - I THINK it may be the battens are tensioned to tight. There is a shape in the sale and often when I gybe - I look up at the sail is curved the opposite way, I have to shake the boom to pop the curve backward. How tight should the battens be?

And logically thinking - a sail that has a "U" shape would do as I stated above.... would tip the boat more, without releasing the wind on the back side thus making it not move forward. So I think that might be it. I SWAPPED to another sail and did get more forward movement - much better performance, but still not as fast as my older boat.

I then later found that one hull had a LOT of water in it.
Which brings up another question. What is common place for water to get in? The hulls are in excellent shape, not holes or chips or cracks that I can see. I have capsized it 3 times. (does that let water in?) and I think due to water in hull - we were unable to right the boat without our wave runner to pull it back up. But hull we stand on is pretty much submerged where we're on it. (so nothing to use as leverage.