v-22 osprey

Hi guys, I am new here but not to the hobby. Been flying for 15+ years. I build, fly and instruct but still having stability issues with my Banana Hobby Osprey. Has anyone else had problems with this model see-sawing, front to back in hover mode? The plane pitches up and down a lot after take...

After watching the Flite Test YouTube videos on David's Tri-Rotor I noticed he complained about the speed of the design in being able to keep up with fixed wing aircraft and I thought the Boeing V-22 Osprey would be able to bridge the gap between fixed wing and multi-rotor. The full-scale design...