That Mustang did not fly like a 1/7 TF P-51, it flew like a foamy. Next time you get close, please lift it, squeeze it, verify that it weighs more than few lbs.
Check out the taxi of that airplane on packed dirt or pavement, the thing bounces off the ground going slow. Check out the takeoff, there aren't many 60 or 90 size WWII planes that take off in 10 feet, or bounce like that on landing. Fip over like that and no damage, sorry, they won't happen with a 9LB Hangar 9 warbird, something will crack and the prop will be damaged.
Like they say, there is something fishy in Denmark.
I have 2 Hangar 9 60 size P-51s, one Hangar 9 150 size P-51, all powered the way they should be powered and they don't take off like that, jumping in the air in 10 feet. Yep, I tried a short takeoff with a Hangar 9 Corsair and it torque rolled to the left, did a 360 and belly flopped. Warbirds need gradual power, right rudder and scale like takeoffs.
I'm old and I am willing to learn new tricks, but, I still can't be fooled by smoke and mirrors. LOL