Hi Paul We have never met but your name has come up from time to time here in NZ. I am currently being trained by Lloyd Heslop in a machine known to you ZK-RCW.I purchased this machine from Neil Winsloe and have just soloed.I,m finding transition to solo flight rather unnerving the machine with 50kg onboard feels very foriegn on takeoff it rears up and pulls to the left, once airborne and trimmed out the machine feels very flighty and on landing even with a slight wind wants to go backwards and rears up with stick hard back.Lloyd was going to solo me with 20kg I weigh 89kg I,m wondering if I should add more ballast and further forward on the seat.What would you suggest with 2 up it,s a pleasant machine with one up I,m glad to get down. Thankyou Philip Jordan