Doug, the problem with getting pictures of his diapers is, he sends them out, and then most do not take a picture of it on the engine. I have one, if you would like to see it installed?
As for NHRA rules, chances are someone was either hurt, or killed, and a rule had to be put into place. Yeah most seat belts are more than fine after 2 years. But what about the guy that doesn't own a enclosed trailer, or garage, and just lets his stuff sit out in the Southern sun? NHRA has to draw a line somewhere. Some guys do the bare minimum, and wear shorts and flip flops if it was legal. Guys like myself, and HEMI Joel, have gone the other way, and made sure we have good safety equipment. At the end of the day, I want to have fun, but if something happens, I also want to make it back home in one piece.