Why not fire off an e-mail to one of the guys at the A-2 windtunnel ?
They seem like nice folks, and while they wouldn't want to share all of their secrets, they could also stand to gain some new business by advertising on this site.
Dave@aerodynwindtunnel.com
Office: 704.799.1001
Fax: 704.799.1112
Wouldn't it be cool if we could invite them to this site and ask their advice ?
( Since you head this site, you have a lot more 'pull' than i do. )
In the mean time, I'll try to call the Texas Tech windtunnel guys. I spoke with one of the guys a while back and he was cool about it, but they are really too busy to answer questions from any of us.