BTW, Dennis, there's a big difference between 'heard' and 'unheard' glitches. Most arrangers have a system where the part can receive the wrong chord (and that's what gets sent to the NTA's) but a split second (millisecond) later the correct one gets played late.

Most of them bend instantly the 'wrong' note to be the right note, or play the right note with poly portamento of zero speed (so that envelopes don't get re-triggered) and you are hard pressed to hear anything at all.

Of course, the problem comes when you export said sequence to a DAW, and there are a plethora of tiny little one tick notes, and codes for portamento and new notes with 0 velocity (or whatever system each arranger uses) cluttering up your key and list editors, and making cut and paste a dangerous thing if so much as one of these little code notes get missed... They can be quite a PITA to edit. Here's where post-quantization of the CS would eliminate them all. But I see it as more an offline process than anything that might be practical in live usage.

From years of using CS's live, I always knew to tighten up and concentrate a bit harder on that LH during the CS record cycle. Which, given that you usually lay it down BEFORE you solo your brains out, was never a huge deal..!