Dan,
Adjusting the side glass to each other is tough enough, then it's got to line up with the top frame / weatherstripping. It's really frustrating to get the glass where you think it should be only to find out that the side glass has to move in or out to line up with the top. Having power windows complicates things even more because the battery wears down from the constant adjusting. I assume that you temporarily attached the top weatherstripping to adjust everthing. Then you take the weatherstripping off to install the top fabric, then the weatherstripping is screwed and glued in place. Therefore, everything must fit correctly before the top fabric is installed. Good luck with the process.
According to the BCA Judging Guidelines, one point is deducted for each tire that was not available for that year or model. Redlines were not available on the Skylark GS until 1966. Radials were not available until 1967. When I drove my convertible to the 2006 BCA Nats in MN and the 2010 BCA Nats in Iowa, I drove on an extra set of wheels with radials tires. Before the show I put on the bias ply "show" tires and wheels. Four tires plus the spare will fit in the trunk. I did not want to drive at highway speeds with bias ply tires. Scary.
John