I applied to WSU but I'm not too familiar with the other schools. WSU puts you in the first tier for admissions if you can get to an average percentile of 75 across the three sections, so that might help. Right now it looks like you're in the third tier, and for OOS, WSU seems to mostly give interviews to first tier applicants. Not sure how they are for WICHE applicants. Here's what I mean about tiers if you're not familiar:
http://dvm.vetmed.wsu.edu/admissions/academic-criteria
As for whether you should retake it, it really depends on how well you can do. What were your practice tests like before you took it the last time?
If you think you can study and do well, it might be worth it. Definitely take a good practice test before signing up. If your scores don't want to budge, or you have other weaknesses in your app you can fix (like retaking an F or D for a school that replaces grades or getting more hours or diversity if you're low on that) you'll have to decide what's more important.