Ted Williams on u-tube.
Eric Davis on u-tube
Albert Belle u-tube
Ernie Banks u-tube
watch your swing in the mirror.
what do you see?
why are you using the vertical approach?
do you practice off the "high tee"?
How strong are your wrists, hands and forearms?
Personally, I wish more young hitters would experiment with the vertical bat. You can practice w/ long bloom stick
Bob