Did you just hear that or did you actually see it somewhere from NHRA?

I'd agree with the rule. Yes diapers can be a PIA, but are worth the hassle. I lost my engine going thru the traps in a 11.20 car a few years back and fortunately I only had about a quarter size hole in the bottom of the pan, but crack both sides of the bottom of the block. It sure wasn't the most fun I've had in a car and sure changed how I approach things moving forward.