Ranged combat as Success test, Need advice... Options

[silva]

Hi.

My group didnt like the default ranged combat as Opposed Test (we found the possibility of dodging fire uneralistic), so we adopted the ranged combat as Success Test, as suggested in the SR4A "tweaking the rules" section.

By this rule, the success in a ranged combat is defined by a "distance threshold": 1, 2, 3 and 4 (for short, medium, long and extreme distances, respectively). Also the rule suggests that some situational modifiers should affect the threshold, not the dice pool (eg: cover, blind fire, etc.), but it doesnt specify exactly what situations are those.

So my question is: which situational modifier should affect thresholds, and which should affect the dice pool?

And what tips would the guys that already use/tested this alternative ranged combat system give me?

THanks!