How do you handle this in RMSS? Two schools of thought here, I have done it with roll stalk and hide and see how much you make it by and the opponent rolls Alertness, whoever makes it by more wins. The other way I use it is the alertness ranks vs the stalk and hide ranks to determine how hard the maneuver is based on the chart in School of Hard Knocks. GM assign a difficulty and then adjust.
0- or less Equal Difficulty
1-5 +1 Difficulty
6-10 +2 Difficulty
11+ +3 Difficulty