I would like this feature for all the "flight" options, JUST LIKE fuel, if I pick 25% for the P-51 I still can pick something different for the Spit and the 51 doesn't change. This is more important for me in WWI where I want the "engine govenor" on some planes and not on others.
The difference between tracers and engine governer being...you can switch E.G. on and off mid-sortie.