The Spit V was tested on 12lbs boost for speed runs, something less for climbing.
The Spit V was later rerated (it mentions it in the tests) at 16lbs boost.
The AH Spit V runs at 16lbs boost, with 14 (or 15) at mil power.
In other words, at mil power in AH, the Spit V runs at higher boost, and develops more power, than the Spit V in those tests did at wep .
The AH 190 shows 1.30 ata in mil power. The RAF tested the captured A3 at 1.35 ata for the climbs, again higher than the AH version. What I don't know is the correct boost for the 190A3 (and5) in mil power. Was it 1.3ata, 1.35ata, or something else?
If it should be 1.3 ata, AH is right, and the RAF had mil power set too high.
If it should be 1.35ata, the RAF were right, and AH models mil power too low.
To sum up, the Spit V was rerated after those tests, and AH models that rerated version, which has a lot more power. Also, either the RAF ran the 190 at too high a mil power setting, or the AH A5 runs at too low a mil setting, or the A5 really ran at a lower mil power rating than the A3. Either way, the AH A5 has less power in mil power than the A3 the RAF tested.
Wasn't the A5 heavier than the A3 anyway?
Ignore the part about the A5 having a stronger engine, you know that, I know that, the RAF didn't know that, and ran the A3 at settings higher than those approved by the Luftwaffe.