I am afraid that I like others can't give you a definitive answer on this.
I have a Standard WL (23mm photo-tube diameter) with an afocal setup and when I was using direct projection I still had the camera on a tripod to avoid vibration.
Have you tried asking in the Equipment Discussions section of the www.photomacrography.net
Forum? Worth a try.
Remember that one needs parfocality between the eyepieces and the photo-tube.
Here is an article that talks you through this with additional further links:http://www.krebsmicro.com/pdf/trinoc_a3.pdf