I am occasionally asked how to stop a batter from hitting balls foul to the third base side for a right hand batter. Here are a couple of [tag]softball practice drills[/tag] that I use.
What I do is take a look at her swing and if the mechanics look good I don’t change her a bit. Most high school girls use a 22-24oz bat and the girls who are hitting it foul may just have good bat speed.
I have them hit with a 2-4oz heavier bat than norm. If they hit to short-stop area and you want to go a little deeper to center, add another ounce or two. This [tag]softball tip[/tag] has worked well for me instead of changing the batter stance /changing mechanics and getting into the athletes head too much.
This [tag]softball drill[/tag] helps players learn to tighten their swing. Player stands in front of fence, wall, etc. with bat in hand in hitting stance. Make practice cuts without hitting the wall behind them.
This helps the player to have a more compact swing, swing level to level down at the [tag]softball[/tag] and stops them from reaching back with their swing throwing them off plane.