ulmus parviflora 'seiju'

I just received my ulmus parvifolia seiju and it has remains of grafting wax on it and a diagonal line in the bark that tell me its grafted, but i dont know why. Does seiju have root issues or does it grow faster this way or is this just the typical "GRAFT ALL THE PLANTS!!" attitude that...

This is my Seiju, I've had it for about two years and I made the first cuts on it this past winter. It was purchased from the Muranaka nursery in Nipomo, CA. It was propagated from a root cutting about 5 years prior to my ownership. 2017-right after purchase Winter 2017 Bark Detail After...

Gifted to me. Nice potential. No real plans at moment.. maybe going to develop as a flat topped acacia styled tree with some flat pads. Will see. Age: About 10yrs? Training: Previous owner Width: .81" Height: 21" Pot sucks. Needs a new pot.