Just to repeat...from personal experience, not hear say....I ran the roller bearing for years with zero issues. A good friend built a L28 at the same time, also with a roller and he is still running his car on and off the track.
Saying this...I dont believe there was any notable advantage. My bud had them laying around the dealership so we used them.
Lets put it this way...by going standard bushing you wont be saying..."I wish I had gone roller" as you would never notice the difference anyway.