I’m like Al, never heard of this, but I weighed every plate in my gym and it’s amazing how “off” some are. I have a set of Iron Man 50lb plates that weight 57.5lbs. Now, I do know these were “unmilled” which if you don’t know, back in the day they used to sell plates “milled” and “unmilled” meaning you could get them a lot cheaper unmilled. We had two sets of Ironman unmilled plates in the old JWC….one set was 57.5 each or 115lbs total and the other was 47.5lbs or 95lbs total…..made a BIG difference which set you used and you did NOT want to get them mixed up. My Uncle Wayne finally got rid of one set because he was tired of getting them mixed up!!!!
Thom Van Vleck
Jackson Weightlifting Club
Highland Games athlete and sometimes All-Rounder