I mentioned this in one of the many threads about this, but not sure if you saw it. I tried using my old Meade prism on Jupiter several nights ago, and while seeing wasn't good enough to draw any conclusions about color or detail, it did make me remember one of the reasons I changed to mirror diagonals years ago, there was an extra reflection dancing around, which I assume is bouncing back from the top surface of the prism.

I haven't seen anyone else comment on this, so perhaps it's unique to my prism or high-power eyepiece choice (TV Radians).

Mike