Options for damaged 1.5" caliper Shantung Maple
We had a Shantung Maple seedling that reached about 1.5" caliper before we had to finally take out the declining Fruitless Mulberry it was growing under. One of the large mulberry branches caught a low limb of the maple on a bad bounce and split its trunk a little over a foot above ground. The photos show how the tree has tried to recover over the past year. Doesn't look like there is a shoot that will both provide a reasonably strong trunk and good vertical growth.
I'd appreciate any advice on the following or other options:
1. Trim it back to the dominant lead and see if the trunk heals reasonably well over the next couple years.
2. Cut it off just above the root flare and hope a good vertical shoot emerges.
3. Grind it out and start over.
I'm leaning towards #2, but don't know the likelihood of getting a good stump shoot from this type of tree. Would rather just get on with a replacement if chances are poor for #2.
Appreciate any insights or suggestions. Thanks!