I would also throw into pillow on rugged floor at couch.

During best bowling period would stand in front of picture window with reflection and rock 10 times into finishing position to build position.

I was very on balance back then.  And it showed in my bowling.

Would do sets

Bent front knee pushed in front of chest!

Those were the single days!

REgards,

Luckylefty

Don't practice by throwing the ball onto a couch though.  Throw it on the floor.  It screwed up my game a ton, and I don't know if I have even fully recovered.  Oh yeah, one thing about just practicing your approach without a ball.  Don't do that a ton, it can mess up your timing since your arm without a ball will swing much faster than with a ball.  Seems obvious but people forget that.  If my with-a-ball approach was as fast as the one without I'd have a 3 step approach.
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- Andy