Older Full Keel boats
Thanks for the quick reply. To answer your questions, two recent considerations were the Brewer 38 and Wauquiez Hood 38, which I did not find in the list.
The sample page listed "sail area", but not the I, J, P, and E dimensions. I have found that many of the brochures I collected in just the past 2 years will list "sail area" with no regard to the accepted formula; they include the largest genoa they carry, for example. It was my understanding that you really should not apply the formula that way. Of course, you make a good point that I could try to obtain any missing numbers via another source.
BTW, I took all the formulae from Nigel Calder''s Cruising Handbook and put them into a spreadsheet so that I could list boats of interest and have the "numbers" calculated automatically. It doesn''t mean I''m going to pick a superior boat, but it was a fun exercise.
Sounds like I should consider getting the Sailboat Guides anyway, since you say there is a lot of good info in them.