I have. I actually contacted them a little while ago about getting a stock. But their price is higher than McMillan. They quoted me at $700. I'd rather just buy a McMillan or manners if I'm going to spend that money. I was definitely banking on these guys though when I seen they're original price sheet. But that didn't include studs, pad, paint etc.
I've got a carbon fiber manners I'd sell for pretty cheap, I sold the rifle it was on. It's got a limbsaver pad and flush cups installed and is spray painted. I'm not at home so I'll have my bro send some pictures if you're interested. $300.
Have you Checked out southfort labs carbon stocks? I just spoke to a few great people from that company and I think this is what I'm going with. The lightest and most durable I have found for the t3x. I got a quote of around $630. Check them out.