I'm riding this year's Calibers on a Salomon Burner and love 'em. Very Responsive and comfy. Also, I've never had any problems with the permanent toe strap; unless you have size 18 feet, the toe straps extend far enough not to impede entry and exit. I've also never had any problems with them slipping off.
My previous bindings were Flux's so the only thing I don't like about these bindings is not everything is tool-less.
I freeride mostly and occasionally hit natural jumps and find them just fine. I think they'd be a good match for a heritage considering the type of riding you do.
Setups Past & Present
12-13 Jones Carbon Flagship 163W (Current)
11-12 Salomon Burner 163
10-11 Never Summer Premier F1 161
09-10 Never Summer Legacy 156
05-06 Never Summer Heritage 158
03-04 Ride Timeless 159