Its whatever works for you John, I had mine fitted with Tobinators but only to give me the angle on the screen I wanted and not to foul my MiGSel mounted Garmin GPS.
The previous owner used it without Tobinators, the advantage of the MRA is it being two part along with the adjustment in the bike fixing you will probably find a position which suits you.
Play around with it even if you think its good enough there might be a better combination. Take a couple of tools out with you and adjust away.