Funnily enough I just bought 5 UX-Pro 90's today... I'm looking forward to trying them out versus the other tapes I've got so I can only go by what I've read, and that is that UX-Pro is up there with early 90's TDK SA-X. Of course different tapes perform differently in different decks. You should try your own tests. On the question of 'Metal Position' versus 'Metal Tape', unless used in reference to pre-recorded tapes where metal tape would be used but eq'd for normal bias playback, I think the terms are used interchangeably.

