Hey Toshi !
Just so you know .This fact is true and indisputable . B-25 aircraft were like Falcon 20 birds on the ground . A ground post was there to keep it sitting level if work was being done on the bird .
Remove cowl weight and down the tail would go .That's why it has a bump stop in the fuselage . As far as flying , well , " Old Shakey " ( My former bird ) , they are definitely full of their own character and quirks .
Mine would shake like a milkshake machine even with both engines in perfect sync . Never could figure out why . Neither could her next owner at Farnsborough ,U.K . T.B.