Monarch SOP's on the bus are for max reverse (except at night due noise abatement) and medium autobrake. We used to use Idle reverse all the time with Medium brake in order to heat up the brakes for the reasons yellow sun mentioned. Trouble was that although wear on the brakes was reduced I believe the number of pad failures increased (due to disintegration).
As for the braking then yes you could use less braking with max reverse but the name of the game is runway occupancy!
Cheers for that longarm. I thought I was kind of right.
Regards
BAe 146