Need to split the US and the J carts into different boards. Just my humble thoughts - since Bo is a Robot on the J cart.

Thanks for your thoughts, but at the moment, I don't feel this is necessary. With how comparable US and JP times are, I'm not sure a split is needed. While it might be easier to get a better time with JP Bo, ultimately the "perfect" time could be achieved with either. In addition, since emulators are allowed, it's fairly easy to obtain the JP version, so I don't think the difference really gatekeeps anyone from being able to go for WR. This all being said, if a number of runners switch to JP and the top of the leaderboard becomes overwhelmingly the JP version, a change might be made in the future.