My pixel tree uses 2" steel threaded pipe. I don't even use guide wires even though I installed loops if I need them. I dug a hole 2 feet deep and have a pipe set in permanent concrete. Then I have several sections that thread onto that base. I have a ring section and then a 6' section and then a long 10' section.
My Megatree was based on Monkhouse design much like Gilrock. 2" Pipe in the ground 2.5' in concrete with 4' section and 10' section anchored onto a 1" emt ring anchored with ScrewType hold downs 18" long. I have had 70 MPH winds with no effect. Thankfully.
I used Pixel strips anchored with eyebolts to tighten on the ring. I used 2 guy wires coming off the back to the ring. I am enclosing a picture of just the tree and also a pdf of the hold down using 18" Screws and a pipe hold down.
My pipe that is in the ground is flush, I used an aluminum piece and wrapping to protect against water with the concrete being flush with the top, an inset cap to seal off and it can have the lawn mower go over the top. The 10' is connected to the 4' and then they are screwed into the pipe in the ground. This thing is rock solid with out any guy wires and looks like a flag pole until the lights are attached. The ring at the bottom and the Screw system will provide more than enough ability to anchor everything.
I hope this may be of help to others to have a strong system, I can let the strips hang down from the top and then insert the eyebolts and anchor the 2 guywires to the ring then anchor the ring and proceed to tighten the eyebolts to tension everything.
