I did mostly just the v graft. Tried a veneer graft but the bud that pushed out seemed to dry up, even in the bag. The wound looks like it's healed up and the scion is still green so maybe it will push another growth out. The v grafts seemed to be more successful even though the diameter was a little different.
Scions wrapped in parafilm also work great and can be kept in full sun. I also used the v-cleft graft and if the diameters differ you just graft it at the side so the cambium matches on only 1 side....that's fine.
Leave the tape around the graft untill the wound is completely healed...And make grafts as low as possible on the tree, not at the tip of a branch. And make sure the tree doesn't sprout new branches below your graft.