Bixler wing surfaces, is this a problem?

Check the images - do I have a problem with this plane? I have flown it once and it was not succesfull (very wobbly) but there was too many variables at that time to tell if the problem(s) were caused by the wings. Before trying again, could someone comment whether this is flyable at all?

It will only make a slight difference, nothing that you can’t sort out with your thumbs. The centre of gravity is very important if things are wobbly then maybe its too far back. Check it once more.

Thanks, I’ll try again once the weather permits.