I quess I sort of hijacked this thread from vivionary and apologize. I found my problem and got it fixed. I now remember some one mentioning seeing the door post rib channel area too high in new installed tops. I checked all my new ribs against each other and they were dead on, I also recall installing the rib in the center channel and when I put the three screws in, the ends of the wood rib were slightly gapped and thought that wouldnt make a difference, tightened down the screws - wrong. I am not sure if the channel had the wrong curvature or if the fact that it was in compression made a slight bell shaped profile. I took the metal rib out and sanded down the middle of the wood rib and now have a correct profile with the rest of the ribs, of course time will tell if I got it right when I get the top on.
John