Oh my lord, don't get me started about that! Bad, yes.
I could also gripe about the RKLee Delin clavycytherium with its impossible
to fathom (less polite people would say unworkable) jack-to-bellcrank
attachment (what was wrong with the way Delin did it?) and the unplayable
drawing of the 1640 yale ruckers - the one where the strings cross the
middle of the jackslots.
Are you prepared to name the bad ones or at least the second rate ones,
particularly those available as plans. I for one consider the RK Lee
Pertici virginal to be an example.