[cardiacpaul]

Please take this the right way, but I think you're focusing on the details and missing the "big picture".

Double-ender or not, Perry made some half-way decent designs, deal with it. Most of his "double-enders" are boats that I wouldn't hesitate to take out in a real big blow, go ahead and say that about most other designers. I've been on Albergs and they're stout... to say the least. Do they sail the "best"? Who really knows.

Fract vs full, in real world applications, doesn't amount to a tinkers dam of a difference. I know this is going to cause the "purists" to gasp in horror, but really, can you say with certainty that one has distinct and measurable differences? What, an extra half know under idea trim? oh, get over it. You're not going to out run the rain and wind. Find a boat that will let you live thru it.
If there were distinct and measurable differences, every builder known to man would be building only one type. It all has to do with APPLICATION. What might be the best for a Farr38 or a J/Boat might not be the best for oh, I dunno, a Hunter, CSY, or a Frogbobber 41. Remember, different purposes.

Read the OP's post, he wants the KISS principle, and cares more for ease of use rather than speed, God love him, a man after my own thoughts.

The Cat-Ketch might be a viable alternative (not because I have one either) They are very easy to sail, perform reasonably well, are well built (stay away from the knock offs)

The only down side for me is the weight of the sails, and that may be because I have the original HEAVY DOUBLE PLY wrap arounds, and I'm a bit "weaker" than most people. Big winches, long handles and or 'lectric is the way to go.

good luck and fair winds, eh?
I need a nap.