User blog comment:LittlePeng9/Random Turing machines/@comment-5529393-20130418180243

Does your final version use the new rule where you label the top vertex u rather than 0? I think that is important, otherwise a height-2 tree might not be that large.

I don't think you need a large multiplier to start out with, so you can save about five states off the total (does the TM work with a zero multiplier?). Anyway, congratulations!