Thanks for the nice comments!!
My megatree is based off of Walter Monkhouse's color motions tree. It is half a tree with 16 strings. The topper is one I used the last few years, I just added more hooks to it. It is sitting in a "portable hole" and uses a JUMP center pole also designed by Walter and tweaked a little by me since I have a 68" stroke hydraulic cylinder to raise it...although with the smart strings, I just set it up extended with help from someone else. The top of the strings are about 22' high and the top of the star is about 25'.
The nodes are attached to 5/8" polyester strapping with electrical tape (the wife was a life saver here as she did 90%+ of that work). The ends attach with d-rings. I use large zip ties at the bottom to adjust tension to rods driven into the ground. I made a master string and then used that string to mark off the nodes for the other strings to make the spacing even. I included a couple of pictures that show parts of the tree. The horizontal straps keep the vertical strapping oriented correctly so the nodes point out. For next year, I am going to get some metal banding for those as the polyester tends to warp and bend when you put zip ties on. If you have further questions, let me know.
Thanks,
-Keith