Once people figure out how much this will help pitchers, 70mph will be the new 60. More people will be touching that number than ever before and a lot of pitching coaches will claim it's their own "good works" not the rule change that has made the difference. Sorry charlie, the speeds will be increasing for almost EVERYONE who uses this rule. It's called leverage and momentum.
I'm amazed by the logic that some people have about not wanting their pitchers to use this updated rule. Finally the pitching rules are brought into 2020, instead of being left behind in the 1950's. Yet, they will think nothing about grabbing the newest, hottest, most exciting bat on the market that will allow someone with just a mediocre swing to hit it 250'. You update your offense annually, why not your pitching? It's unthinkable for a kid to use even a 10 year old bat in today's game, yet they don't want to update their pitching mechanics?
Most high schools will have to fall in line with this, although there's only a handful that do not follow the NHFS rules. If high school wants to keep up the illusion that players get recruited from high school to college, they will have to adopt the same rules. This is a good portion of the reason why ASA, USSSA and PGF all followed the NCAA. And I wouldn't be surprised if colleges aren't as enthusiastic about a pitcher who wants to keep both feet on the rubber vs. one who doesn't. For the same reasons colleges would almost never recruit someone who didn't play Travel ball, using the same pitching rules as they'd see in college. The comparison needs to be apples to apples, not apples to bowling balls.
Bill
I’m confused by your post. USA and USSSA are now in line with NFHS. So your statement that “most high schools will have to fall in line with this” is counterintuitive.
Also, none of these organizations are completely in synch with NCAA. College pitchers are NOT allowed to take a step back during their pitching motion. The only change is that NCAA allows the pitcher to take her signal with the stride foot behind the plate. USA, USSSA and NFHS (not sure what PGF says) allow this as well.
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