I'm fairly new to bowling. Yesterday, I was bowling on medium oil. I found a line that worked early on. Lefty here. Release on 16th board, target on 2nd arrow (10th board). Typical release at 8' o clock, not too much lift. After the first game, the leaves were incredibly bad splits. Mostly pocket hits, but left a couple 7-10s, 6-7s, 6-7-10s etc. Why could this be happening? I tried to make moderate adjustments, staying on the 2nd arrow, but moving a little left or right, to no avail. I even tried going down the channel, but it was so dry, it was crossing over the headpin. I don't roll very hard, just nice and easy. I tried increasing the pace, but the hook was gone. I use a mild reactive ball 15lbs.