Read this post, I have being here for a while and I never saw Infinite 3-D beings; High 3-A - is usually for characters stated to be 4-D with no feat near universal or characters with Infinite Energy.
- High Universe level: Characters who have an infinite degree of 3-dimensional power. Alternately 4-dimensional power that is shown as completely qualitatively superior to 3-Dimensional beings, but is less than universal in scale. Or that allows them to create large parts of a universal continuum. Take note that 4-D power should logically always be superior to countably infinite 3-D power, so characters within this tier are not necessarily comparable. Also take note that we consider most small scale time-space abilities as hax, not as AP.
"treating every universe level" - this is not done and a large oversimplification. Unless specified in the fiction, the correct definition of universe is including matter and space-time - true even the Japanese language.
By Ockham's Razor, if used accurately, assuming the universe is defined accurately than the feat with it would be Low 2-C