An update on the experiment
It has been growing really well and although I could not see and roots I figured I will check just in case. I would prefer to have it stand on it own thru winter a instead of waiting another year. Also if it has not rooted, then the cut may have calloused over as it was growing so well.
The split pot I used was on the small side. and was not really holding enough water thru the hot days either so was another reason to look. If there were no roots, I would reapply a larger pot.
Upon revealing, there was only a few roots but they were quite large and an healthy, so decided to take it off.
Note the roots are only on one side. I rotated the tree every week or so but noticed the roots were on the other side of the trunk from where I had made the cut for the wire. Looks like the section of bark below the groove has died back and thus was no live tissue there to root?
Time will tell, but looks like that are will become Shari later ?
Front / back/ Who knows as there are branches off the trunk in 3 directions at the same spot, so at least 1 will go. but not until it has grown somewhat
Ken
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cos when I sore the small amount of root's, my thoughts was maybe just a little bit to early on seperation from the main tree 
