Thank you very much for the detailed observations Ramv.
I’ve noticed my Zenport from Bangood didn’t have very aligned blades. I made a few cuts, which were satisfactory, but the blades clearly weren’t aligned. I don’t see any adjustment out of this.
That said, I’m think I’m glad I bought the tool. I’ve made a few cuts, and like others’ photos above, the cuts provide much more cambium contact than straight cuts with a grafting knife, or straight cuts with double blade pruners (both of which I own).
Even with all the cheapness of this cheap aluminum tool, I think speed and length of cambium contact will far surpass other grafting tools.