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Hi Matt,
I'm no expert on bino collimation, but it seems to me you may have some collimation issues. Going by binos I've owned (Nikon 7X50, Andrews 20X90, etc) and others I've looked through, you should get a pretty good focus with stars in the centre of field of view. Only cheapo binos usually don't focus properly in the centre. Using only one eye at a time, check each side of the binos separately to see if they focus stars at the centre correctly. You may find only one side is out, or possibly both sides. You treat collimation 2 ways: You have 2 separate optical systems (or small telescopes) that must be collimated properly individually, and then, the 2 sides must be aligned together as well so that the views merge comfortably and you don't get double images or eye strain.
I would think any reasonable bino (Pentax included) should be able to be collimated, but this is best left to an expert, for the reasons stated above.
Probably best to check them out further and if you can get someone else to give you a second opinion after having a look through. Then if you are sure there is a problem, contact the supplier and see what they say first off.
I really hope you get satisfaction with your new binos.
Cheers
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