Interesting little area you got yourself into there Genghis. A few questions though..
1. What speed range do you have Vs - Vne?
2. What were you doing on the rudder pedals at the time (DR excitation possibly)?
3. How does your stead handle when gliding, or have you not tried?
4. Is it possible to change the gearing to the canard?
Sounds like flight test in it's truest form, 'oo errr how do I get out of this' but joking aside have you since tried stick recoveries with varying amounts of power applied? And lastly would it have been possible to rudder the aircraft into a roll which would've dropped the nose to gain more airspeed.
Not much help at the minute but interested to see answers.