This was discussed about
two years ago but not to any great length, and the number decided was decided seemingly at random, which doesn't sit right with me.
We can consider how a character upscales from another without applying senseless multipliers that don't come from in-verse power comparisons but rather our way of trying to keep everything consistent with each other, which doesn't adequately achieve that result.
I would be in favor of getting rid of the multipliers through upscaling and simply treat the characters as "likely
higher", rather than allowing tier jumps the way we currently do.