Tempest needs to stay perked, IMHO.
However, now that we have a Fw190D-9 with MW50, and its not perked, I am much less certain that the Spitfire F.MkXIVc should be perked.
In fact, I don't think it should be. At least not initially.
(I flew the D-9 last night and that thing is NICE)
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We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother
Bring the Spitfire F.MkXIVc to Aces High!!!
Sisu
-Karnak