I just took about 15 corkbark Chinese Elm cuttings after removing an airlayer about 2 weeks ago. I’ve never taken cuttings from Chinese Elms before, but from what I’ve read is they are pretty easy. Cuttings are going into week 2 and I lost 3 due to mold. I probably should removed more leaves than I did, so if you do take some, only leave like maybe a handful per cutting. Interestingly, the thicker cuttings seem to be doing the best on callousing. Currently they’re in a propagator on a heat mat under LED’s. I’ll let ya know how those turn out. Growing season is still strong here so my experience with fall cuttings may be different than yours with being more up north. Plants are pretty smart and they know when things start slowing down. Cutting success seems to fall in line with the growing season, in my experience.