My advice for better understanding Sharp Practice:
1. First, think Activations, Orders and Actions.
2. Instead of Big Man "Initiative", use "Orders". So a Big Man Level III can give three Orders per his Activation.
3. When a Big Man uses an Order to Activate a unit, that unit gets 2 Actions. With those 2 Actions, they may do a variety of things. Some take 1 Action, some take 2 Actions. That unit may not be Activated again this turn even though the BM may still have more Orders to give.
4. Get rid of the term "Action Dice." A unit does not get 2 Action "Dice" -- they get 2 Actions.
5. Sometimes, especially in the early stages of a game, a BM will have more Orders than he can use.
Hope this helps. I find players more readily understand this terminology.
By no means does this infer that I am dissatisfied with SP. Just the opposite, I am a big fan and I use various TFL rules for all the periods I game.
Chuck