Originally Posted by 4arch
The base PHRF ratings are 126 for the 400CC, 117 for the 400AC, and 108 for the 411 - so not huge performance differences between them going by that.
Even without looking at the PHRF it seemed to me that they should have a significant difference. PHRF on the same model will be quite different depending mostly on the keel.
The best handicap for the 411 (deep keel) is 87. The best regarding the 400 is 111 (deep keel). The worst regarding the 411 (shallow draft) is 120, the worst regarding the 400 is 135. That means a difference of 24 points regarding the two fastest boats and 15 points regarding the two slower boats.
I call that a significant difference that will be even greater to the 400AC, probably as you say about more 9 points.
To that difference also corresponds a difference in overall stability performance and that's why some consider that the 411 is a good offshore boat.