Great review and a great kite. I used to own a set of XTr's and have flown the bigger brother often as well. They did make a XTs UnLeaded version as well but that was not really needed. The STD goes very low. The VV however is a true beast with 8p flagpoles in it. Very impressive to see the likes of Wim Smeekens and Matt Mayet work that aircraftcarrier of a kite in highwindspeeds without much footwork.