I've got the Shoup notched which are reversed with the concave going inward as opposed to the ones going outward like the smooth disks.   Good:   they will close up very well in even the worst no till conditions.  Bad:  if you have any small rocks they will wedge between and plug the row.  I usually get at one caught every year.   The other thing is in our heavy no till ground I've noticed the notched disks show a lot more wear.  I'm considering trying Martin Razor closers as my Shoup notched wear out.