I forgot to mention that i upgraded my heli with both stage kit upgrades from flyrcrivesud.com. The package claimed better outdoor flight in low wind conditions. This included a longer outer and inner shaft. I am going back to the stock inner and outer shafts and will keep posted as to the outcome. A local hobby shop informed me that although the upgrade kit (longer inner and outer) may increase outdoor performance slightly, the extended shaft is much more tempermental when it comes to slight warping of the shaft. I believe he is absoluetly correct as the rotor head wabbled much more immediately after upgrade (no crashes, damage, etc.) than the stock shaft did.