I bought a PZ Trojan after messing around on their cub. The trojan has given me a chance to start training in acrobatics. I can loop and do hard banking turns. Steep dives and even fly inverted for two seconds before getting scared. MY question is with barrel rolls. When i roll the plane it has the tendancy to roll sloppy. Its not a tight roll at all and the plane has a tendancy to dive during part of it. I have seen stock Trojans in videos pull off nice tight straight rolls. How is this done?