I installed a support system 2/3 up in a live oak that is 40ft. It is a co-dominant stem that splits 4ft from the root flare, the DBH of each stem is 20". I wood not be able to get the holes parallel to install a brace at the main split in the tree, so I was thinking about putting another support cable on the lower 3rd of the two main stems. What do you think??? Using 3/8 EHS with guy stops.