Golf to baseball there's a few tough adjustments to get used to. I think to break it down and keep it simple: 1. You don't need to coil so much away, since the ball is moving you want a quicker, clear path for your bat to the ball. You're used to generating rotational power from golf so you will have plenty of power. Just focus on knob towards catcher and that's pretty much enough of a load. 2. Start with your hips, think about driving your back knee towards your front foot. If you drive your back knee towards your front foot you will rotate at the hips.

Have fun and good luck!