@pastorbob -- did you mean to say 2P is safe for any application, or were you referring to 3P? Based on what I read on the website, it looks like 2P is a better choice for DACs, but I'll certainly reach out to the AE.
So for Curious Cable, right now I don't notice any differences apart from a maybe a bit more bass. Unfortunately, I have been super busy lately and have not been able to burn in the cable yet. It'll probably be a couple of weeks for me to put on 50+ hours, at which point I will share my impressions. But right now, I honestly cannot hear any differences.
BTW, I have never had a power conditioner in any of my systems -- headphone or 2 channel. That's another avenue I still need to explore. Maybe after upgrading ATM3.