Weird pattern, don't you think? Two christmas tree patterns, one on forward oil, one on reverse, that only overlap for a few feet around 12 feet? Usually they overlap for 8 or more feet. Only 80% of last years oil, but the oil is applied deeper down the center of the lane by 3-4 feet. Also, the pattern is totally symmetrical this year, usually there is some variation between the left and right sides.
I would guess the oil is slicker but doesn't migrate as much as last years oil.