Stop in for a cup of coffee

When I went to take the front wheel off of the motorcycle the other day, I had to remove the caliper for the front brake first. I noticed that the upper bolt didn't come out so easy. Then I noticed that one of the four pistons was cocked out a little bit. So today before I put it back on I took it all apart and am checking everything and buffing the edges of the pistons where they meet the seal before I reassemble it