Jim the 829 is a solid body roller with no oiling hole to the bearing. The other 2 choices mentioned have the edm oiling. If I was running a street roller
I would be fine with the 829 and have ran the sb version with no trouble. My lobes are designed to be easier on springs so I assume they’ll be easier on the rollers.
Andyf May have chose the amc because they may oil through the pushrod but I’m guessing.