Bit of a mismatch at the prow between the height of each boom. Only amounts to a half-inch or so and something Boeing would surely sign off, but it offends my pride.
With a jig and better materials it would likely be brought within an acceptable range but here I went on to drive a dome-headed screw into the end of each boom so that a rubber band could be stretched between them.
This ameliorates the issue, and as you can see from the pilot-eye view it's not really a game-stopper.
