i like the rcbs gold metal bushing dies ,the reason i use bushing dies is if you measure the thickness of various cases (lapua,win,hornady ect) you will find that they differ so i can keep the same neck tension on my bullets by using them. as for the micro seater dies its just easier for me if need to go down .003 for this load i just count the hash marks as i dial. i also sort by ogive,mesaure each powder drop and do case prep.are they worth it for me yes since i like to shoot little holes if i do my part. for hunting probably not now pistols are a different anilmal i run them thru a turret press with regular dies rifles get done in a single stage press.