RE: Why semi-displacement (or semi-planing)?
Also, Dashew's boats have little to do with what's out there in the "production" ranks.
Dashew is concerned with VOYAGING , not 1 in 10,000 or so is looking to do real ocean work.
Production boats are to be MARKETED , if its great as a condo , with the bride , 90% of the job is done.
Efficency is how fast the bucket gets SOLD , hardly how it performs.