For an extra $10 I purchased the lone wolf "blind marked" barrel, so I don't have the "puppy face" staring at me everytime I shoot, and even with the extra cost of the blind marking, it's less expensive than the nearest competitor. It's paid for itself already and I've had it for a little over a month. I've had absolutely no reliability issues and accuracy is as good as any other I've handled. I did notice that my velocity when compared to the factory barrel using the exact same loads was about 40-50 fps slower. I've got the range date if anyone's interested.
There was a good discussion on the issue here a while back, I'll post the link if I can find it.
Hey Jbonnette, if you get urge to play with a lone wolf barrel (g17), or test some loads, let me know I know someone down the road who makes frequent range trips