Anyone upgrade from Jays CDT2MK3 to CDT3MK3?

I have both units - the CDT2 Mk3 is an emergency backup. Most of my CD's are recorded on Plexdisc CD-R's from downloaded Quobuz .wav files. If a given CD starts to pop here and there from wear, it is freshly recorded from my computer on a new disc using JRiver. You do have to keep the laser lens clean.

Plexdisc CD-R's are allegedly thicker than most blank CD's, and I have fewer issues with these compared to any other blank CD-R's. Amazon stocks them.

I tend to always leave a CD in the transport. I know what you mean about the twiddling sound. It probably is doing no harm, but it's a big, beautiful beast of a transport; and you don't want to offend her.

"Out of curiosity, did you notice a significant sonic improvement of the CDT3 over the CDT2?"

I would not say "significant," but it is smoother. The jitter levels are enough lower than the CDT2 that it is audible; and the innards look beefier.

My backup transport - the CDT2 Mk3 - was an offered upgrade. The original machine was a Mk2. I paid for an upgrade board to be sent to me by Jay's. It was pretty easy to install. This was a few years ago.

With regard to the CDT3 Mk3 in comparison to previous models we have somehow overlooked an elephant in the room - the latest model has the toggle switch for activating the 176.4 khz upsample. For most of the CD-R's I play this option creates better music. The toggle is not a gimmick.