i would say the footwork and timing is the issue, i had a similar problem before last year's fall
ur 3rd step doesnt move forward at all, it looks like it goes to the point where the 2nd step ended at.
i used to push away in my 3rd step(5 step approach). the ball was "bangbang"ing the foul line. took me about 2 weeks to get the timing corrected.
i tried slowing the approach down with less backswing but get the footwork corrected, corrected in a sense make it rhythmical and fluent.
instead of focusing the mark and the release, i only paid attention to the approach, i can say practically i was saying out loud 1,2,3,4,5 during my approach.
on 1, star pushing the ball, not completely out
on 2, keep pushing, when the right arm is straight, let the support arm go away
on 3, the ball at the bottom of the swing
on 4, ball on top of my backswing, all the body weight on my right leg for my power step
on 5, let the ball fall down naturally and at the bottom of the swing just let it go.
that helped me on the timing and push away.
hope it helps
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When a house bowler misses the mark, misses the break point and strike, for many ppl its called a wallshot. When a pro does that its call adjustment
When a house bowler gets his finger stuck in the ball and fall on the lanes, for many ppl its called lame bowler. When a pro does that its called the Machuga flop! ha i like this one.