Its not working for my Pal version :-(
Yours might be one of those we're trying to figure out that has the different offsets from others. If you can use the memory viewer to search through memory, you can go to the training dojo and scan the range 10 38000000-3A000000 (I think that range should be big enough to enclose the offset others seem to be having). Take the level of the character currently active in the dojo and subtract 1. (xx-1=yy) Search for yy as an 8 bit value. Once it's finished, hit LZ or RZ to a character with a different level and repeat the same process. (xx-1=yy) Do that until you get only a few addresses to view and poke manually.
And also for research purposes to help figure out the offset thing; what type of Wii U do you own? (Basic or Deluxe version?)