Joe,
I’m trying to understand your thoughts here.
Any shot timer is just that. It marks the shots from the time is is started till the time the shooter is finished. Every timer does the same thing. The AMG takes a step up as it communicates directly with the scoring pad so the RO doesn’t have to call out the time for it to be entered int o the scoring tablet. It has nothing to do with the type of sport you are shooting. IDPA, USPSA, Steel Challenge are all the same.
The differences in and within each sport are calculated inside the PractiScore scoring App. This is a wholly separate system than what a timer is doing.
I suggest you browse through this tutorial it might help out.
Regards,
D.J.