I have a fun little grafting project on the go, heirloom cherry tomato on a yukon gold potato rootstock. I'm doing it just for the novelty of it. On recovery day 2 now, and I have lost one of the 5 plants. Of the remaining 4 plants, 2 of the potato root has sent up a really slim little leaf shoot. Should I be cutting this off? I think I want the potato to be forced to heal the graft, rather than grow new shoots? Advice needed, I havn't grafted anything before and of course would prefer success to failure!