poker

hey people, i have a whippet cross that im just gettin into lamping and he is takin time catchin quarry, seems as tho he backs off at the wrong moment, was told it would help to take him out with other workin dogs so i ask if anyone out there in the bristol area that goes out coursin and wouldnt mind lendin a hand i would be greatful, thanks

i have a lightforce blitz 240 lamp which im using 12v 7amp batterys to run it, would i get a longer lamping time if i was to use 12v 14amp batterys?