Are you implying that if a case isn't a 1x1 or 1x2, that it's a "dealer" case because it may have a break cue in it?
I'd say the majority of players carry a 2x4 case or larger and very few of them are dealers.
Oh, to answer your question: I break with my player if I'm playing straight pool or...
Contact scdiveteam and try one of his Esoteric sneakies. I hit with one at the WCCS and was very impressed.
My top 5 sneakies would be, in no particular order:
Rick Howard
Bob Frey
Esoteric
Richard Harris
Lambros