Lets step back and examine this...to the disinformation crowd, you are like Democratic politicians... a rice paper sushi roll...we can plainly see right thru to your BS. As far as carbon in the necks crowd, I'm sure at one point you had to have purchased virgin brass. Most alarmists will say, "oh, it can only be initially used to fireform!!!!"
I have seen quite a few matches won and some records set with virgin brass so carbon in the neck is not the holy grail. And Dusty made a point regarding the SS pins "shot peened necks"crowd. I've done my own testing with dry clean necks and carbon necks. "No Diference". You know what makes the difference???? NECK TENSION. Those of you who have hard data that states different, please, put it out there. I'm relying on what I have tested with numerous calibers. Consider factory match ammo like Lapua, Fed GM, etc... No carbon in those necks, and I've witnessed accurate performance by those as well. At this stage of the reloading process, it only matters what you feel comfortable doing. Me personally, I use wet pin tumbling only because "I" feel confident that my brass is the cleanest when it comes to the sizing process. Doesn't make right or wrong, better or worse. It's just what I feel satisified doing.