Good question.. Just tested. nope, dead silent.
somethings up with this new batch of caps. hope factory didn't pull a fast one.. few heater plates, rock, few plates, weld, lol. china special. gotta open and look.
I haven't experienced the screech or the spinning caps. I'll try to loosen it up or something. Gonna try some light hits with the ceramo. See if I she will grow on me. She's got one foot out the door as of now. The sc is a dud for me too. Doesn't make that much of a difference from the regular cap. Just takes longer to cool. Counter intuitive for my needs. Some people may like it. Does it have it's own thread too? Super capacitor! More mass! More energy to operate, more money... same effect! Fuck it, you'll buy it anyway.
Edit:
Ok I slammed it with the super cap for about 23 seconds on the wand. Nice big fluffy hits... but so hot after the 1st hit. Scrambled for the j-hook and the bottom of the hook got pretty warm.
Then I did the relaxed slow sesh. Nice tasty light hits... then when the fluffy vapour came so did the heat. I was surprised how many hits I got.
With the ceramo it's either White wall the glass piece, or light whispers.
This is what makes the cxl so versatile. You have these ends of the spectrum and a nice middle ground of big fluffy, tasty, COOL hits.

If I can find that happy medium the ceramo's a hit.
No squealing or spin.
Also this thing is dead sexy and feels good in hand. Love the weight.