BACK IN THE DAY, I used to do this. It was not uncommon for me to make slight adjustments off of shots that struck and looked decent to the untrained eye.
BUT, the important part of doing this is being very sharp, sharp enough to know the difference between a good shot that barely struck, and a bad shot that barely struck.
If I knew it was a good shot, then I also knew the "loose" carry was not my fault, but an actual condition that I had to adjust to and allow for.
If it was a bad shot by me, I knew no adjustment was necessary, other than to throw the ball better.
IF YOU ARE NOT AS SHARP AS YOU NEED TO BE, you will not always know the difference.
It is actually a weird thing to try and explain. It is a whole different level that, unless you have been there and experienced it yourself, you can't understand what it really means to be at that level, but I know that some of you guys know what I am talking about. That weird level you can get to where you can literally feel such minute differences in a decent release that got lucky, and a perfect release that didn't need to get lucky, and you know the difference instantly.
It is weird when you get it. Almost like having a "sixth sense" about making moves and adjustments, making other players wonder why you're moving or changing equipment on shots that look good to them, but you know better.
That place does exist, I've been there, but it is a hard place to get to, and not everybody makes it. Takes lots of hard work, money, patience, and time.
It is also very hard to maintain that level, as it goes away REAL quick if you don't bowl, even for just a few days.
Oh yeah, forgot to mention, bowling was NOT FUN at that level. There was nothing fun about it, as I took bowling deadly seriously back then.
It was far more like having another job than it was like having a sport or game you love playing.