I have to vouch for the G2 wholeheartedly. I took my newly built shuttle and made every measurement their was to make and entered the data into the G2 modifying the existing trainer. I practiced on that for 3 weeks till I could get an intructor to comeout and check flight me. Other than the small adrenaline rush associated with real life, the real thing behaved exactly as I expected it to. I was doing 4 point boxes on my second tank, and my instructor asked me why he was there! Get the G2 its well worth it!!