I like the idea but agree with Gritz - make it where not using it isn't a big detriment.
This and all the other realism settings people talk about are a bit like combat trim. I fly without it and manually trim because I think I can do it better. Advantage to me for manually trimming - but it isn't a big advantage.
I'll always vote for full realism wherever possible. That's why I do this stuff - I like the realism (as much as there can be in a cartoon flight/combat sim).
Give me cowl flaps, mixture, boost, turbo overspeed, engine overheat and shell, cumulative pilot fatigue, oil spray on the window, blood, guts, gore, and veins in my teeth! I want a ground crewman to have to wipe the blood off my windscreen!

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Rape, pillage, then burn...