From your post, my understanding is that you applied the Crisco over the wax? If that is the case, the crisco may have nulled the wax. I have never used Crisco as a parting wax but would assume it dosent work very well. The only thing I can suggest to get them apart is a few heat cycles. It it going to be a huge PITA but try to get the assembled fuse and wing as warm as you can then get it outside to cool rather quickly. My hope is that the wing and your potting mix will have slightly different expansion / contraction rates and this will aid in popping them loose. If not another alretitive is with a rather small nozzle blow about 100 psi into the seam.</p>