Had my runnings boards stamped at MVM in Smithfield Utah. Went riding for 3 days in 3+ feet powder and never had snow build up on my boards. When there was snow one swipe with my foot and it was gone. My buddy didn't have his stamped and he had snow on his the whole time. The holes look like they were done at the factory!! The holes are rolled to maintain the strength. Sure beats hacking up your boards just to rivet some thick aluminum pieces back in. PM me for info.