Well, I have a few .50 4s sitting around. A saito gk.50 and two os 52 surpasses. I was looking at the U can do 3d, but was unsure about the skill level required to get into this plane. I am getting back into the hobby after a hiatus, and am going to spend some time with my four star 40 and rascal 40 before i moved up to a 3d plane, so I might go with the second group and get a larger edge.