Bowling Again - Week 13

My spare shooting improved this last week, but I seem to lose focus on my spare shooting as the night progresses.  (Had a lot of spares to shoot at being that I had a total of 5 strikes in the 1st 2 games.)  I didn't have my 1st open frame until the 6th frame of the 2nd game.  I was 16 out of 20 for my non-split spares.  The issues I have as the night progresses is rushing my feet and staying down with my shot.  I also think I need to start out by having my forearm straight instead of holding my ball in front of my body.  I rolled a 198,   157 and a 214 for a 569 series.