I am now getting on to 3 weeks since I had mailed in a used oil sample to Blackstone :(. Of course I am still hoping that Customs or whomever will release it and send it along but it isn't looking good (mailed from Canada). (I sent in a virgin sample 10 days later and I have already received the report!) I always keep meaning to to do this but from now on I will take two samples and keep one as backup. Wondering what might be the record for a sample to finally turn up? Who else has lost for good a mailed in sample?