Here is my Boscoyo med tree model. I use a 360 prop for physical stability, but only use a 180 with the lights. 50 nodes in the tree and 10 in the star. 60 node string Start at the bottom left go up 10 , down 10, up 10, down 10, up 10 and then the remaining 10 go in the star. The stars are modeled separately, then my 16 trees are grouped, the 16 stars are grouped, and the tree group and the star group are grouped. YMMV.