I don't know about you, but I prefer to use "pure" polish's (abrasives only). Ive given ultimate polish a go and I don't like that it has a glaze in it. I find its to hard to tell exactly what's been corrected.
Have a look at menzerna's 85RE. It has similar cut levels to your ultimate polish, but has no glazing properties.
Like I said, I never seem to have enough time! My missus said she's trading me in if she comes home to find another set of wheels in the living room