I have the Tandem from 2 days and it flight very vell,
I have only a little problem so far, I need everytime to move the rudder trim totally to the right ( from the beginning of the flight ) and it tend to move the nose still a little bit on to the left, it is normal ?
I using it with a Spektrum DX8 and I payed in version BNF 60 euro
here it is a little test flight
hoping to hear you soon for some suggestion