Thanks, you guys give me hope. Just to be clear, when I said many of my side grafts failed, here is what I mean by a side graft (I'm not sure everyone uses the same terminology). I used this when I have larger diameter rootstock and a smaller diameter scion. I use a grafting knife and cut the scion up the middle for an inch and remove one side of it. That exposes two sides of cambium, one on either side of the cut. I then hold that against the side of the rootstock and eyeball how wide it is. I make a slice down the rootstock at that diameter about the same length. That lets me line up the scion cambium with the root stock cambium. I then tape the two together. I did this on containerized seedling rootstock when both rootstock and scion were dormant.
Some succeeded and some failed. Most of what I've read shows folks using a cleft graft when both are dormant. My rootstock is now waking up, so I'm looking for a method to regraft them. The root stock has pushed out minimal leaves given the size of the root system. I've pinched them off as soon as I see them to drive energy into the scion. I doubt the roots have push much of the stored energy yet.
Rather than try these side grafts again (they may have failed due to poor technique on my part), I was thinking of trying a cleft graft. The tree provides the pressure rather than tape so there is probably less room for things to shift as I tape them for protection. I tried a few today. You guys give me hope they have a chance.
Thanks,
Jack