Here's what I can tell you about the NFL Combine... I've never been invited. That, and I don't care that much for Indianapolis...mainly because for decades the Colts knocked the Chiefs out of the playoffs in bizarre fashion.
Given a chance, I would run a 6.4 40-yard dash (and maybe tear an ACL in the process), and I think I could still probably throw a 10-yard out route, but nothing more. It would also lob down like a moonball. I may have a few years of eligibility left, but sadly no takers...
It's the end of an era...in my head.