Shooter65,
I am building one now and I was advised to epoxy in a single shot follower by a couple guys with quite a bit of knowledge on these. They also said that in a prairie dog shooting frenzy where 10 or more shots are taken in a string, a box of ammo next to the rifle might be just as fast one at a time if you consider the time spent shoving them down in a box mag. Just food for thought.
Jeff