If you follow models from most internet gurus then you are unloading the barrel or ‘getting behind the ball deep’ with ‘speed deep’. Which makes ‘ON TOP’ a head scratcher.
The new MLB model is go big or go home.
"We start with extreme ttb with the barrel head pointing at the pitcher. Maybe 4 or 5 tee swings. "
These are not full speed tee drills. Maybe 70%. More feel and exploration. There is a gif of a college aged player doing this quite impressively. Fun to watch if somebody (rdb) could post it. Girls hands and wrist simply are not generally strong enough to crank the barrel around as TM demonstrates. They will drop their hands and go under the ball. When doing tee work be sure to put the tee up high.
Two extremes: think Gary Sheffield and George Brett. Both successful. Most girls would benefit from emulating Brett more than Sheffield.
Let me throw this monkey wrench into the discussion. One legged hitters are going to TTB earlier and more aggressively hitting the ball deeper in the zone and two legged hitters more passively and later hitting the ball out in front more often. The reason I say often is you can find the same batter hitting off their back leg one day and using both legs the next day. Hitting a ball moving 95 mph or 75 mph causes all kinds of adjustment in real time. I am a Angels fan so I see Mike Trout (poetry in motion) and Andrelton Simmons (not so pretty but effective)
Actually. There are young girls demoing the ‘unload’ TTB model. The result was a stalled back elbow to keep the barrel ‘up’. I’m sure you’ve seen them. So that’s not correct.
The truth is the barrel needs support through the swing to stay on plane. In the pro model that would be the back elbow. In the ‘internet’ model that would be a stuck elbow against the rib cage or you have the option of tilting/contorting your body to plane the pitch. Either way its what is needed to not dump the barrel under the ball and have ‘some’ control of the barrel.
Hey look we both learned something.