Kuzma/Koetsu feedbak??

Not qualified to comment on clearaudio tts, except to say that I’m a direct- or idler-Drive guy.

You can check the archives of this forum and on Vinyl Engine and Vinyl Asylum.  If you search on "Koetsu", I do not think you will find evidence to support the contention of the person with whom you spoke.  Yes, some people love Koetsu and some don't, but I have not seen  comments that collectively indicate an endemic problem with fragility.

Personally, I have always disliked Clearaudio cartridges.  They tend to have a sterile or "clinical" sound that I find fatiguing.  My opinion is based on listening to some of their most expensive models on very high end turntables, but it's entirely possible that their less expensive cartridges actually sound better.  

Orenstein, sorry if I muddied the water by mentioning the Doehmann and the Kronos.  I am completely out of touch with the prices for the Kuzma models that you are considering, but I suspect that both of those alternative turntables are way more expensive than the Kuzma Reference, or at least a few thousand dollars more expensive. I do know that retail price of the Doehmann is $25,000. And that is without a tonearm. They do also make a less expensive model, but I am not sure that includes the minus K isolation platform built in. That platform is what makes the Doehmann stand out in my mind.

I also somewhat regret my remark about the Naim electronics that you are using. Really I have no solid basis for criticizing that gear;, I am just biased against it from having heard the stuff years ago. And I admit that I am biased in favor of tubes or hybrid circuits when possible.

The 2-platter Kronos is an intriguing alternative to the Kuzma. So is the Doehmann tt with built in Minus K isolation. ( I’ve heard that one.) Both of these offer some new age thinking as far as features and design. You probably don’t want this comment, but IMO the Naim electronics, while they’re fine per se, are maybe not up to the level of your potential new phono gear.