Here is a pic of the patches from the last time I was out, except for some fraying on the edges they look good. I also put a few of the balls in there to show what they look like. I laid the one second from the right in its side to show how flat it looks. It has the same mark as the ball in the top left of the picture.A photo would be good. A close up of several balls.
I would think you would notice on loading if they were all shapes, no?
It is good that the patches are in good condition. Did you say there are no holes or tares in the shot patches?
Did you check the bedding under breech?