I'm not familiar with the Hanger 9 P51 but a lot of semiscale war birds tend to have some bad habits at lower speeds, like when landing, when in the air they are like any other "sport" plane but you need to fly them on to the strip not float them downlike a trainer, personaly i'd get an in betweener plane.

also it may fly "EASY" for them 2 guys but then what are there skills compared to you or me??