I agree that this is far better in the Aerodynamics forum.

Yes you want the canard loaded so it stalls first. But then again it has a lower reynolds number and is suffering from being a shorter span so it has more effect from the tip vortices.

All in all it comes down to the old Hiesenburg Uncertainty Principle that says " We just don't know"

Would it be possible and practical to set this model up with some of the heavier bits arranged to be movable with an easily adjusted mechanism? If so you could alter the CG and thus the canard to rear wing loading ratio and try flying it with testing for the stall and steep banked "G" loaded turning behaviour and a host of other tests at both of the extreme ends of the speed range of the model.

I have to admit to only playing with a couple of canards in all my days. The last one was an old timer single pusher canard. I honestly never did get that one flying the way I would have liked. But keep in mind that to fly their best free flight models generally need to be on the ragged edge of almost being unstable. The model just didn't work that way. It seemed to be best when the canard was very heavily loaded. But then the fore wing was creating too much drag and the overall model performance suffered badly.