the aircraft was designed for the 503 or 582 two stroke power plants, and at the MTOW you get when you use these powerplants it might be +6/-4 G. However, rumour has it that engines up to 100 horse power have been fitted to the airframe. This must increase the all up weight somewhat and thus reduce the G you can safely pull. I wonder what engine was in the display aircraft, it certainly didn't look short of climb performance. Still, it was most impressive up to the point where the pilot wished he was flying an Edge 540!
Rans6..