I use the matcher in my sig and have never had any issues with his cells. He is a local guy for me which makes it better but his numbers are just as good as the big guys. He does have a website obviously and has sold packs to people out of the US. Great guy to deal with and is very helpful if a problem should arise. His prices are good as well and is inline with or maybe even a bit better then some of the others.
I just noticed this was in reference to 4200's and I don't think he has started matching any of those yet. He has been getting some really good 3800's in and no one here has been pressuring him to get 42's. I do believe he was talkin about getting a batch in to start matching but I don't know when.
JRXS Type R, I have four of them!! ;) ( Yes, I still have them!!)