Tedster,
I used one of these for digibinning quiet some time ago, but I did not really like hanging all the weight on the binocular eyepiece. I still use it when digibinning though since I have yet to find anything better.
Most of the time I use it with a 10x Barska as a camera/booster combination for bench tests and have replaced the tripod with a 4x3 inch optics base plate.
See attached pictures. Two different camera zooms, handheld, about 130 meters. Sorry, don't have any decent shots on this computer.