Yes I did, it is more consistent with mirror lock on, but still fails to trigger only once. without mirror lock it gets triggered erratically, like only once in 2-3 clicks on start button. I suspect this could be an issue of the camera trigger wire I’m using !! which is just a 2.5mm audio aux at the camera end and 3.5 mm at the RCA/Phono sockets end of the circuit.