RCBS gold medal match series full length/neck sizer sets

[gunnie]

have/do you use/own the RCBS gold medal match series full length or neck sizer sets? how do you like them? same for their bullet seater gold medal die? are they worth the extra money for your purposes?

i am not real clear on how the floating sizer ring/bullet seater would be an advantage...pls educate me about this feature.

gunnie