Since we've got the ear of a pro here - can you give a little insight on what kind of tolerances can be expected from a (mostly) CNC'd "prefit" versus a hand turned and measured barrel? (lets ignore actions or other parts for now)
Given that prefits are (in most cases) substantially cheaper than a traditional lathed job, its got to be due to reduced labor since the blanks remain the same. As the consumer, what are you giving up? There is no free lunch. Is the future wire EDM everything but the chamber?
Curious as to what you see as "the future" for barreling in our sport on both the low end and high end of the quality spectrum.