My 'hunch' on how the low speed maveuverability of the 410 would be in AH...
I did some very quick in-game testing with the 110G-2 and Mosquito Mk.VI regarding low speed maneuverability. I didn't have a proper stop watch and cellphone can be a bit akward to use so instead of timing complete turning circles I was lazy and just quickly checked the corner speeds.
Mosquito - sea level - 50% fuel:
Clean config: 179mph
Flaps all out: 116mph
110G-2 - sea level - 75% fuel:
Clean config: 154mph
Flaps all out: 113mph
Looking at the figures, the first thing that's really noticeable is how much Mosquito gains on the 110 when the flaps come out. Comparing real life 410 and Mosquito Mk.VI, while the difference in wing loading is quite brutal, The Me410 produces significanly more lift per square feet of wing area due to the differences in airfoils and the fact that Me410 has slats.
Mosquito used a modified version of the RAF 34 both in the root and the tip and Me410 used NACA 23018-636.5 in the root and NACA 23010-636.5. in the tip. Quick and dirty calculation using just the root profiles giving 0.2 extra (I base this on the gain of that of the 109G) on the Clmax for the Me410 due to slats puts Mosquito's and 410's clean stall speeds very very close to each other. Not wholly accurate as far as exact results go but it does give general direction.
So, in AH I'd expect the 410 being able to hang with the Mosquito in clean config. But if the difference when the flaps come out is as drastic as it is between the 110G-2 and Mosquito, the moment the flaps start to come out the Me410 isn't able to hang with the Mosquito anymore.
Again, just my hunch, take it with a grain of salt.
(edit) Forgot this:
