How the hell can you folks be crashing spitfires on landings? P51s??? Duuuuuudes, I've NEVER ground-looped a spitfire, EVER. P51s only when I've had major damage (or pilot wound blackouts). They're fairly docile. Even the high-torque 109 series I usually don't ground loop, most I do is ding my prop (often) on heavy rate-of-descent landings.
F4us have some tendency to do this, but maybe I'm just used to it. Before the latest 2.08 patches (before 2.09) the Ta152 was impossible to land 100% of the time for me. Apparently something was fixed, as I can land it now fairly easily.
P.S. Using rudder pedals to take off, most planes require 75%-80% or more rudder deflection in the takeoff. This lessens as speed builds and I notice myself pulling my foot pressure off as I speed up, and I usually have a bit of slip once I'm up and gear up, because by this time I don't need it anymore.
That's not a small amount of rudder. It does SEEM that the forces are muted in this game, but maybe just because we can't feel inertia, swing, shifts, and so forth. I find to actually keep a plane centered on the runway during takeoff (my new favorite thing about rudders is hands-free takeoffs) it takes a lot of rudder input.