The need to chamfer and deburr with "machine like accuracy" is overstated. I achieve low runout after using hand tools to perform those operations. Also I use a Wilson trimmer which produces more consistent/square trimmed cases that the RCBS the author touts, and which I also have.
The RCBS competition seater, while a step up from the usual seating dies, is not quite in the same league as the Forster and Redding competition dies according to the runout checking fixtures I've used.
