Weight is not the only criteria to use when selecting a cue for Breaking. If you have ever seen a Break shot in slow motion, you will see the shaft deflects to a warped look at impact. Column strength in the shaft is a necessary ingredient as well. Add to that a hard leather tip (I'm not a fan of phenolic tips) & you have a Break Cue ready to do that work.
I have a laminated shaft that comes in about 13.7, the feel at impact is solid. The taper is specially designed to have that column strength I talked about.
Everybody has a nose & an opinion, good luck in your quest to find a good cue for you.