Allenflowers…
Please keep in mind that the aircraft under test had severe lack/poor control authority.
I scratched my head on that issue for some time.
I speculated the wing tips were bending, inducing pitch oscillations (installed a robust spar.. Did nothing)
I speculated the canard was stalling (increased the cord thickness, minimal at best improvement)
When I added the elevator to the main wing I honestly did not know what the outcome was going to be.
I did speculate the control would improve but would it be to much… my control surface area guess was right on.
It was amazing the control that was achieved after this change (excellent control authority)
Knowing this, one can draw the conclusion that the aircraft that we flew with a canard can only give you so much pitch authority (poor at best by itself).
The big boys it may make a difference, I do not honestly know, but the aircraft I/we tested it only makes a small impression on performance
I can tell you what it does well... & it is truly amazing to watch (control line). To cool….
From Level flight:
Command max pitch up
Aircraft pitches up/stops (HARD) hovers (never stalls hangs on the prop) The aircraft walks at a HIGH AOA
This thing can stop FWD flight in just a few feet
Command pitch over & the aircraft levels off nicely (I have never seen an aircraft recover from what looks to be stalled flight like this thing). IT IS TRUELY AMAZING…
Oh… It is very audible the prop is operating in very disturbed air when you do this maneuver.

Enjoy