Tomorrow night, I will start running CE 5: Silent Nightfall for 8th level DCC characters. Basically, this is to allow my players to re-use the characters they created for Harley Stroh's Colossus, Arise! I would like to see if "level 2+" really works, and I believe that a number of challenges in CE 5 will prove to be "level proof" in that they require the players, not their characters, to think things through. Also, the design of the map is such that I don't think the major strengths of high-level characters - such as the ability to affect many visible targets with a single spell - can easily be brought to bear.
I can't say too much, because my players also read this blog, but I will be happy to report on their experiences as they work their way through the complex.