I hope Michael will chime in on this as he is a certified Range Master.
I have been designing courses of fire for a long time.
My mix has always been tactical. I always build my stages around skill sets.....
1) Up close fast and serious.
2) Reloading drills..
3) Target recognition, and no shoots.
4) Extended range shots, with a scenario based reason. 35 - 100 yards, Ipsc, shooters hate that.
5) Low or no light drills.
6) Chuck Taylor Master drills, If you have not done these, you will be humbled.
My goal was to always stress a different skill in each stage. In the hopes it would make my contestants better handgun shooters. A lot of whiners, at my matches, but those who endured, became better shooters.
Comments, anyone???