Russ, nice setup there. I used a 283 with the off camera adapter many times. After about 1000 exposures, I was told the voltage was to high. Hmmm
Anyway that is a cool way to work. Ya could hold the flash at any angle and have some interesting control over the light and shadows.
Now sometimes I use a Nikon SB22s on the GXR. I'm working on getting it off camera....
Really cool with snap focus.