Edit: Going back to this supposed Bf109F power conspiracy.....
F-1s were only being delivered to JG2 in April of 1941.
In September of 1941 JG27 in Africa was being re-equipped with F-1s and F-2s.
In the fall of 1941 on the Russian front, noted ace Werner Molders was flying a F-2.
In December 1941, Reich Marshall Goring himself was flying F-2s. Notably modified with more guns, but F-2s (NOT F-4s).
A small number of F-3s were in use early in 1942 scattered amongst units.
F-4s were introduced early in 1942. F-4s were as early as February 1942 cleared for 1.42 per the flight book. That's pretty damn near since the start of their service. By May 1942 they were already working on the Bf109G-1 model, so throughout its 6 months of intense action it was always using that power setting. Some hand-me-down units on the Russian Front were given war-weary models for jabo use and ran them at reduced power, but this is also true of their jabo 109Es. They were not used as front-line fighters.
The SpitV we have is a second-half-of-1941 spit. The one with +16 was a late 1943 model and totally inappropriate. The fact of the matter is that the same spit was in use when the Bf109F-4 arrived to engage it. The F-2 was there for some months before the F-4, but let there be no doubt this constant conspiracy theory has been put to rest. We have the best appropriately matched 109F-4 and SpitVb we can have.
The F-2 would round it out better, as would the E-7 (which was struggling against SpitVs for a short while until the F-1s/F-2s could help ease the pain). By no means do we have a complete planeset, but we do have a damn good matchup with our F-4 and Vb pairing. Those that disagree haven't flown both sides of it against their historical rivals. It's quite a balanced fight.
EDIT2: Footnote on the power setting... comment from kurfurst.org:
"This clearance is in fact also supported by the February 1942 release of the Bf 109F Flugzeughandbuch, which no longer notes any limitation in regards to the DB 601 E. The new Hanbuch part 7 (Powerplant) was likely to have been re-issued because of this clearance.
See D.(Luft) T. 2109F-1 bis F-4, 'Bf 109F-1 bis F-4 Flugzeug-Handbuch', Teil 6 'Triebwerksanlage', page 7., authorized in Berlin, 24 February 1942."