I just received my blow switch from ultimate and my nikon d3100. when i plug the switch in i can apply pressure and take pics for 20 sec but when it stops it wont take pics again for 30 or 40 secs. or if i take 1 pic and try to take more it freezes dor the same amount of time. i called nikon and they said it must be a switch problem. i know this is one of their newer switches but if anyone has any advice it would be much appreciated.