Autospeed mag aero testing article
 

Very good article on aerodynamics.
Autospeed - Aero Testing - Part 1

It shows browser warning, I don't know how to title inserted link. If you want to be safe Google Autospeed and search for article entitled "Aero Testing"

I fixed your link name.

Yeah, Autospeed has some good articles. The aero testing is a good idea if you are doing aero mods!

Thank you.