I use mine to remove snow, driving forward. The rear wheels don't pack it too hard. Run it straight down the middle. Then angle it using those holes to do the sides. Actually, I can usually just do both sides, and the side-dos do the middle as well.
Neighbor has one, too. He angles it down and uses it to pull his gravel back onto his roadway. You angle it by using adjusting your adjustable 3ph arm. You can poke it more out to the side by loosening those bolts at the back and sliding it over and retighten the bolts on yours.
The back blade is better for rooting out a roadway on a slope than the FEL because you can angle it by adjusting the 3ph arm.
Ralph