Nope, super easy. Disassemble the magazine, and then just twist the follower a bit to remove it from the spring. You can use needle-nose pliers if you want to pull the spring out of its hole on the follower. Place a piece of sand paper on a table, and move the follower in circles on the sand paper to keep the edges even and level. Remove material until you can no longer see the curves at the front and back of the follower, as shown in the picture. It's about a 3 minute job, and basically required to be able to load 10.
I run 17 pinned to 10 magazines now, but I did this with all of my 10 round magazines.