When Beth and I did the Spacecoast 45 earlier this year on the 20 (combined weight of 320), we were smoking fast downwind and in the light stuff, but as soon as the wind came up to a double trap velocity, we could not hold the boat down and the the F16's and F18's just walked away from us. Now we're on an 18 and I think it much better suits us. Of course, I'll still miss the 20.