I would think how much spring pressure you are going to run would be a major factor. But I will tell you I ran the edelbrock victor jr. heads with Hughes rockers which have no rollers, .750 lift cam 250 on the seat and 650 open pressures for many years with no issues at all with the standard oiling. I never had any wear or breakage issues. Now if you are going to run much more aggressive spring pressures then maybe you may need more oiling. I had a world products block but used the same rockers for 3 seasons with a stock block. One issue I would think about is if you would break a rocker you have needle bearings in your engine and the bushed you do not. I always preferred the bushed rocker on a good shaft.