I was looking at cam specs last night on comp cams web sight. Im curious what the advantage of a hyd roller over hyd flat tappet. Ex. comp has a hyd flat tappet 294/306 250/256 @.050 .554/.558 110 lobes and a hyd roller 290/296 236/242@.050 .515/.533 110 lobes. I understand that the opening and closing ramps are steeper on rollers and they open and close faster.
My question is this, what the advantage of the roller given these two cams.