Hi Peter
I also bought a pair from WO eBay webshop 2 weeks ago. I totally agree that their price was great ($99 cheaper than their official Aussie dealer Andrews?!)
Yes they are of good quality and heavy, causing some balancing issue with my WO refractors. I have some focusing issue. Even with a 1.25" diagonal and the supplied 1.6x barlow nosepiece I couldn't achieve focus: not enough inward travel. Solution is to use a short 2x barlow between the diagonal and binoviewer then I could come to focus with plenty of room to spare. Seeing with both eyes open was a lot more relaxing and allows me to spend more time at the eyepiece and sometimes I could see depth/3D feeling. I guess ED80 would have the same issue which I haven't try. I will try it tonight on my 5" Mak as well to see if it focuses or not. Will let you know.
