It's nice to have an LRF coupled via Bluetooth with the Applied Ballistics' engine from say, a Kestrel/AB 5700. That means not going back and forth from the LRF to the Kestrel. WHICH LRFs have this capability? (NOT including the Bushnell Sport LRF). I wish the Leica HD-B 3000 binoculars had it. Eric B.