I have two. Only fired one. It was kind of rough inside, but I diassembled it, cleaned, deburred obvious areas, lubed it up, hand cycled it 100 times, then fired it. No issues with S&B 00 buck.
Sent both out to be SBS'd (first one 9 months ago, other 7 months ago) to two different shops(1 is a liar, the other incompetent), neither is done. I will reveal the shops after I get them back(I asked for them both back), so no one will waste their time with them.