Professor Perry found my email address & contacted me.

I am glad to hear of his & others interest in airflow as it is critical to every dimension of efficient performance.

I was also notified that Contracting Business Magazine had an August article Are You Ready for QI Quality Installations? By Ray Isaac, that appears to be instituting the Quality Installation (& service) standards I have wanted & worked for.

Quality installation (QI) standard (ANSI/ACCA 5 QI Â 2007 HVAC.

Those standards are supposed to be implemented in 2009.
Are you as a Contractor Ready?

If local oversight & enforcement is implemented it will lead to a win/win situation, energy usage savings for HVAC users (everyone is a user), & more business for HVAC Contractors.
- udarrell - Darrell

Here is a link that might be useful: Contracting Business Magazine

Can I please have your email I've been looking for you for a long time read a lot of your information best I've ever seen I'm an ac tech

Post is over 10 years old - Udarrell retired from this and other HVAC forums long ago!

I can recall random posts from this guy not too long ago in other forums but I think he died earlier this year.

Died in March of 2019.

Sad, he was quite a knowledgeable guy on HVACtalk.com and DIYchatroom.com.