While that is not really the rule I won't disagree however that being said, in each of these two additional sequences the defensive wrestler hit the mat WAY harder than Ryne's Mill Valley opponent and I would lean towards saying "unnecessary force" would be a force that was more extreme, not less extreme. It doesn't matter who hits the mat first or if it is under control. The rule says "RULE 7, SEC. 1, ART. 1: A slam is lifting and returning an opponent to the mat with unnecessary force. This infraction may be committed by a contestant in either the top or bottom position on the mat, as well as during a takedown. A slam shall be called without hesitation." By the way, I am really not sure which match you are referring to Kevin. I would like to stress that the rule does NOT say you can't use FORCE, it says you cannot use UNNECESSARY FORCE. I would not have called any of them slams. All good, hard wrestling.