With the 3-die set from Lee in .480, the seater die has adjustable crimp from slight taper to full roll.
Lee doesn't seem to offer a Factory Crimp die for .480 (at least not from Midway)
Redding sells a Profile Crimp Die that is "Designed for those who want the best possible crimp. Profile crimp dies provide a tighter more uniform roll type crimp-"
Is the Redding die worth the $? Does it really produce a better crimp than the standard Lee? What's different about its design?