The old Mosquito Mk VI was noticeably inferior to the current Mosquito Mk VI.
Generally yes, but not in every way.
The old Mossie with the off center of gravity had better MIL power and better elevator authority (as long as you were able to avoid the sudden stall and spin). Not sure about the roll rate, but the new mossie feels slightly slower in the roll than I remembered.
The new Mossie has a mega-WEP. It absolutely relies on it in tight fights and for escaping/chasing. It also increase the fuel consumption rate by an insane amount - for every 5 minutes of WEP you loose additional 2 min of flight time in full MIL power. So 5 min in WEP is like 7 minutes in MIL. I thought WEP was mostly adding water to the mixture, not that much more fuel.
Anyway, I took the 410 for a spin and was disgusted - parked it and will only up one again to attack GVs. It is a pure attack plane, nothing like a mossie. I only engaged one while flying a Mossie and easily out maneuvered it. 410 is probably deadly against bombers if it will ever catch one. The A20 is a dangerous opponent in low speeds and confined spaces. This is because it can maneuver at very low speeds, take damage and has deadly guns that reach far. These are qualities that make a good dueler in the hands of a good pilot. In a large scale engagement, I am not sure it will do as well. The 190D is the exact opposite, it is a poor dueling plane but exquisite ride in large scale encounters as many scenarios and FSO events showed.
p.s., take away the F3 view from the A20 and it will be in serious trouble regarding SA.