cam bearing issue

The cam bearings are larger from the first to the smallest in the rear. So the cam will feel nice and free until it reaches it's specific location/bearing. It is normal for it to "feel" snug when you try to install the cam in its final journal. Just as long as it isn't to tight. I don't know how to convey the to tight feeling to you it's just something you learn over a long time. I hope this helps you out.