Just wanted to share - I fitted the the throttle lever upgrade from Shapeways at the weekend. http://www.shapeways.com/model/1148750/ ... Box-search It turns your v1 Tx into the new style that have the throttle level auto-centre when you let it go. It was a breeze to install once I had located a suitable spring to use (my local model shop helped with that). I find that I really like the auto-hover when I let the stick go, makes her much easier to fly. cheers.