My friend has one with a DLE 20 & as yet it hasn't displayed any of the nasty habits described here.
He asked me whether people are making the wing a one piece as he has & also where is every one setting the cg.
His seems very stable & on the vid is landing in a cross wind hence the extra speed.
It's a shame people are having dramas with this model as it's a nice looking P51.
Steff.
http://www.youtube.com/watch?v=UEBereUKCNc