Ok guys, a couple of points..
1. You don't have to worry much about a runaway prop due to loss of oil pressure. Pitch CHANGE is dependent on oil pressure. Loss of pressure means the prop will stay where it was set, or creep up to the high rpm stops under dynamic load. Normally, the prop will be at high RPM/Low pitch for combat.
2. The P-38 was far more prone to runaway props with the Curtiss Electric propellers than any fighter with an Hamilton Standard prop installed. This problem plagued the B-26 as well.
3. There are three mixture settings in a US fighter type. Idle Cutoff, Auto-Lean and Auto-Rich. There are no cockpit adjustments. Takeoffs, landings and combat require Auto-Rich. A pilot would shove the mixture lever to Auto-Rich, the prop lever up to max rpm, then push up power and he is ready for combat (in the order I present them). Typically, this condition was set long before actual combat occurred. Pushing the throttle up before the prop(s) is at max RPM can easily lead to an overboost condition, which can cause detonation and engine damage, especially if allowed to persist.
4. Once the mixture and prop is set, there is no need to touch them again, except to cruise home later if fuel is an issue.
My regards,
Widewing