I feel like I've thrown the ball better this year than last year, yet my average has gone down!

I've had no in-between this year. I've either thrown the ball great and had a great ball reaction, or thrown it just OK, but had no look at the pocket. Not much to FIGJAM about this season except for my 800 early in the year.
1) Super easy shot on Tuesday nights that breaks down and gets really weird the second half of the night, I was as high as 234 earlier this season, down to 227 now! 2) Saturday nights, unpredictable second-shift shot where they run the heads for us, but don't do anything else to the lanes, I've struggled all season there save two or three good weeks, only 214, 3) Sunday nights, we get the leftovers from an adult/child league, some weeks they're great, some nights they're just awful, right around 219-220. I'm not in the top 3 averages for that LEAGUE, much less the house, in any of these.