It seems to me the NiK2 can hold higher angles of attack than the spit at lower speeds. Also, the tail does not get washed out like an F4U. Nuke, generally when I run into spits, I let them blow their energy, then use the ability of the NiK2 to bleed E coupled with the fowler flaps to ease in behind them. It has a great rudder and between getting sideways and dropping flaps at the same time, seems to work. That is if the guy pulls a tight turn. The key as you know in most planes is throttle management and finding that sweet spot where you have enough airflow to keep your controls responsive.
As far as the rope, that is the NiK2's best move against a less experienced pilot. Because the engine is good and the flaps are great, as other airplanes start to get unmanageable in the vert, you still have great control authority.
I try to run leave the flaps in until I either need to bleed E or I need the extra lift to bring the plane around the top of a loop at low speeds.
I love the plane, it is generally my #1 ride, emergency orange of course.
disclaimer*** for all you keyboard fighter jocks... these are descriptions, to the best of my ability to articulate what I do.....