10-15 sounds like a good estimate.
Honestly I don't think DoB really shines without Thirteen, and since I switched armors on my HUney, I've been rocking a 55h charge sawcer to greater effect. Nice to not worry about HP on a lower HP class as well. However, the base slicer series is seriously lacking in aesthetics so that's a minus, but you have to trade looks for efficiency at some point.