Did some viewing last night under reasonably dark skies. Felt like playing around a bit and put the 55mm Plössl in the 8" f/6 dob, to produce 22x at 9.2mm exit pupil and 2.3° of TFOV. Not only did the space time continuum remain intact, but the view of the Crux/Centaurus/Carina region passing overhead was actually pretty neat. The secondary's shadow was nowhere to be seen (this is very different during the day, when one's pupils aren't dilated), and the sky background, though not perfectly dark, was decidedly non-blinding. In fact, it looked about the same as naked eye if not a little darker. Complaints? The EP needs an extension tube to sit properly, and that's just about it.