mech Roller vs Mech flat tappet cam Q

RB"s have the large diameter lifter bore-.902 With this in mind would there be any advantage of going to a Mech Roller vs a standard Mech flat tappet in the .590 lift and 240 dur at .050?
The car is not a drag racer it is driven on road race tracks and consistantly in the 2500RPM to 6200RPM range