I really don't need "nothing" explained to me.
By nothing I mean your statement that you have to have forward hand speed.
Who doesn't know that? Who believes throwing hard comes from backward hand speed? Who believe throwing hard comes from slow speed?
As my daughter says......"No Duh!"
Perfect example of the "stuff" you get from baseball.
If we're talking pitching/hitting all I ask is you say something when you speak.
Talk about rotation into footplant. Scap loading. Tempo. Intent. Especially intent. Arm action. Something that has meaning.