It can be flown with out the tape if needed. Did it FORCE the wing back or merely allow it to move back? Won't the rubber bands hold it in position?

If worried about sealing the gap you can apply a thin bead of RTV along the saddle. Cover the wing with Saran wrap(or similar) to avoid contact and carefully put wing in place. Hold wing lightly in place so as not to squeeze out all of the RTV with a couple of rubber bands. Allow RTV to cure overnight. In morning remove wing and Saran wrap carefully. Trim RTV if needed due to compression smearing. Done