3 week turnaround seems a tad on the long side...I just received my 98 and 06 uoa's back from Finning CAT SOS in Edmonton and it was a 10 day total, mailing and all.
Even when I used Blackston mailed from Canada, it was about two weeks and a bit...
When I used Blackstone, it was typically a week between mailing and results being emailed to me...
I was thinking it had been a while since I sent the sample(s) in...hopefully there's nothing wrong as I have put on ANOTHER 4k miles since sending the sample in...
I usually get my e-mailed results about 2-3 business days after I send mine off, but it only has to go about an hour away from me from. I do mine through CAT since my friend's Dad gets all the samples he wants for free.