I appreciate the feedback.
This forum has been a great source of information and it's awesome to get people's personal experience...Thanks everyone.
We're going to follow up with PAM...it's all out war.
I'm thinking I may even buy a couple bags of substate and wrap them in a garbage bag/quarantine it for 30 or 40 days.
Since we're going to be using white (non ink) newsprint for the next 30 or 40 days while we deal with this mite issue, it might be a good idea to always have some available that has been quarantined.
I'm now concerned that anything we get from a pet store may be contaminated.
It's probably better to be over cautious.