Whether it's a slide step or a high leg kick home, what moves first....the front leg. Exaclty the motion used to deliver the ball which is an abbreviated leg kick quickening the delivery home. Hand speed should be the same on all pitches. A pitcher doesn't speed up his arm speed during a slide step, he seperates a split second sooner enabling his arm to catch up with or be on time with his quicker lower half. i agree that hey may not be that effective although I am curious to see a good one. if a kid has good arm action and hand speed he would not have to resort to a knuckleball.
I wasn't suggesting he throws a knuckleball to first but you can lob the ball over to first and keep runners honest with quick feet and varying the amount of time you hold the ball before going home. I think it would be a team by team basis as far as a knuckleballer's effectiveness goes. Some better contact gap-gap teams would probably have better success and patience than a free-swinging club. More oftentimes than not, I would agree with the lack of effectiveness but you never know.
I wasn't suggesting he throws a knuckleball to first but you can lob the ball over to first and keep runners honest with quick feet and varying the amount of time you hold the ball before going home. I think it would be a team by team basis as far as a knuckleballer's effectiveness goes. Some better contact gap-gap teams would probably have better success and patience than a free-swinging club. More oftentimes than not, I would agree with the lack of effectiveness but you never know.