I can't believe ANYONE uses them for feeders for boas. Going back almost 10 years now, there's a WELL documented history of this particular supplier KILLING or permanently scarring LOTS of boas (happened to me too). Well, it was well documented until it was deleted off of the forums here to protect them as they are a HUGE advertiser with KS (which was the precipitating event for me to leave this forum as the "main" forum I visited and posted to, along with MANY others). Perhaps if all of those threads (evidence) had not been deleted over the years, it would be MUCH easier to show that they have been harming the herp community with their practices long enough to warrant them being out of business. But hey, do we blame them, or the people who want their rodents SUPER cheap? After all, they're simply filling a market niche (a HUGE one at that) by trimming as many costs as possible.
As far as I'm concerned, this latest issue is simply another straw on an already dead camel's back. But, I'm sure they'll continue to be in business because regardless of the preponderance of evidence against something, MANY people simply "can't pass up a good deal" - even if that good deal kills their boas (years of evidence) and potentially the businesses employees and customers (newest outbreak).
As for American Rodent Supply (which was recommended by someone else)... Personally, I can't trust feeders that were not raised by the person/business I'm buying from. And taking that a step further, ALL of ARS' rodents are LAB SURPLUS. Here's a quick blog with more info: http://www.deviantconstrictors.com/blog/lab-surplus-rodents.html Personally, I'm not keen on feeding rodents to my boas that will light up like a Christmas tree under certain lighting conditions!
I've just started using Loxahatchee Herp Hatchery (after The Mouse Factory went out of business) and am VERY impressed. In fact, my first shipment from them arrived and when unpacking it I actually said out loud "this looks like it could survive a nuclear bomb!!" Get in touch with them. They may not be as cheap as Rodent Pro or ARS, but you get what you pay for.
jb
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What's written above is purely my opinion. In fact, MOST of what you read on the internet is someone's opinion. Don't take it too seriously 
Jonathan Brady
DeviantConstrictors.com Site received a complete makeover! Check it out!