Ok so I lied not a new pitch I just don’t know what its called.
Ok so you see the horseshoe shape of the stitches on the top of baseball and the line of stitches on the bottom? Well I took my hand and made a U shape with my thumb and pointer finger like the horseshoe and put it inbetween the horseshoe shape and straight line so my hand was only on the leather. Now I took this grip (hand on the bottom of the ball) and threw it like a fastball (first pitch I COMPLETELY missed the target and hit a tree but after that I threw some good ones) and it went to the left and down but it was a pretty hard pitch. Also I supinated (yeah I definitly spelt that wrong) and it seemed to be like a big sinker. Anyone else try this or know what its called?
EDIT: the way I throw it is where I have my pointer and middle fingers side by side and my ring and pinky fingers bent into my hand under the ball not touching it. Also the ball faces upwards with your hand directly under it. I thought it might have been a little unclear the way I explained it before I hope this helps a little more if not just let me know.