SOME PLANES SIMPLY do NOT work on AFPD which worked fine in AFP!
?
You are correct, but it's far from 98% more like 2%, it's only a couple developers who used a different conversion method to get their planes to work from CAD to AFP. They did this to protect them from being used in other programs and from changing the skins.
But guess what, these guys are getting their planes converted for AFPD right now. Rodeo has some of them done already.
http://www.rodeo.rc-sim.de