I own 2. They have massive shafts that you will never feel any give up in when you break. When you hit 'em solid, it feels like a spring unloaded in the shaft. The weight distribution is excellent - feels just like a playing cue as a breaker, and the weight falls nicely forward as a jumper. I don't buy too much into the idea that your break cue needs to be balanced a lot differently (rear weighted) than your player. Just means you're using something unfamiliar for a really important shot.
That being said, modern equipment is often amenable to softer breaks. The OB break, and the Lomax JB are probably really good. I know my Lomax jump cue is fantastic.