I see what you did. When I had the dowel installed somewhat lining up the BBs, I knew that the height was different for each. That is why I tried to also get the top tubes level assuming that that was going to be indicative of how they would set once built up. I figured then I was looking at frames with tubes parallel to the ground and was close to eyeballing the same relative frame angles. The forks weren’t really needed I guessed. Not super scientific but I was just looking for comparisons on a rainy day. Out for a nice ride tomorrow.