Re: Anyone have a Vortex 2.5-10x44 Viper PST 30mm yet?
Unfortunately I think you have about zero chance of getting a 2.5-10 PST within a month.
I haven't owned the Sightron or Zeiss but have been impressed by glass for the money in the ones I've seen.
Another you might add to your list in that range is the 3-9SS. Good glass, lots of travel, very reliable tracking, good matching reticle & knobs, etc.