Conrad Johnson CT6 Teflon upgrade, anyone done/heard it?

Buy a CT5 (there's a couple for sale right now on A'gon) and sell the CT6.  The cost difference between the two will probably be less than the upgrade cost and you'll end up with a much better preamp.

Have not heard it with the upgrade.  I did own the preamp at one time though.  Sold it and found a Pr16 that I enjoyed quite a bit more for a number of years.

Also thought about doing the upgrade to my CT 6 before selling it.  At the time I was given the same advise that I gave you.  But I preferred the Pr16 to the CT5.   Won't name names regarding the person who gave me the advise but the company that he worked for had the initials CJ.

Another way to look at it would be to comparre the 17 S2 with Teflon to the 16 without and the CT6 with Teflon to the CT5.   In both cases I think the 16 or CT 5 would be the better option.