I've been looking at the Redding Bushing Style reloading dies for .308Win and I'm trying to decide between the Type S Neck Bushing Die and the Competition Bushing Style Neck Sizing Die. In the Redding catalog it shows a cutaway view of each of the dies but the Competition die has a case in it and its hard to see everything. That brings me to my question, is the "Type S Neck Bushing Die" and "Competition Bushing Style Neck Sizing Die" the same dies only with the Competition model having a micrometer adjustment? If not what are the differences and advantages and disadvantages of each die?