So, I bought a vivtar 285 flash and A cactus Transmitter and 2 receivers about a year or so ago, they didn't work for anything and I stumbled upon the "mod" with the 433 hz 1/4 wave whip antenna, so I finally figured I'd try to get it to work. I did the mod, used 6.8" of 18 gauge wire and the whole thing fit fine and looks great. I put the receiver on my vivtar and held the transmitter and walked down my driveway while my wife held the flash. It worked great, I got a little over 350 feet away at a elevation about 50 feet below the flash and it was still going strong, but I ran out of room to walk in my socks lol So I put it on my camera and it's a no-go, the light on the transmitter lights up and I didn't touch anything on the receiver, so I took the transmitter off thinking i did something, tested it, it works put it on the camera, it works maybe 1 out of 10 times when i'm within a foot, what's the deal? Again it work EVERY time when I was testing off the camera. I have a Nikon D80, vivtar 285hv flash, cactus v2s with antenna mod. I would just buy the PW but I just purchased an 80-200 f/2.8 and sb-600 so my wife wouldn't be happy with me spending the extra money on the PW or any other alternative. Anyone have ANY ideas?