Chris Rice's suggestion for to-hit rolls

[zot]

Originally Posted by Skarg

Essentially, instead of rolling your own adjDX to hit, you subtract your target's adjDX from your attacker's adjDX, divide that number in half (round towards the lower value), add 10, and roll against that.

Yes, mechanically, it functions like combining both sides of an opposed roll into one dice roll. it's trades one side's roll for extra math. Personally I like having two players roll and avoiding the subtraction and division but I'm not sure how universal that is.