I just showed a student how to do it here yesterday. I think I used the right eyepiece if I'm not mistaken. The exit pupils on the Leica might be a bit smaller and less forgiving than the Meiji.
Scott, the Leica has a higher focus distance than the Meiji. By that I mean that your eye - or in this case, the camera - has to be further out than with the Meiji. With my Meiji my eyes had to be very close to the glass lenses. With the Leica they are much further away and more comfortable. Try pulling the camera out a bit.