Koetsu Rosewood Vs Rosewood Signature Vs HANA UMAMI RED advice please

Congratulations on your new TT.
I’ve installed a Kuzma CAR50 MC on a 4Point11 which had a Van den hul Colibri on it. The Kuzma is actually a very good cartridge - up there with the Colibri - I would say more resolving than a Koetsu Rosewood, unless you went for the Rosewood Signature Platinum. CAR50 is very even handed - it would be a safe option for your system - I have 2 pairs of Tannoys and know your speakers well. Owner listens to a lot of rock, blues, jazz. Ignore the CAR40, the CAR50 is in another league and better value despite the higher price.

By contrast the lower priced Air tight cartridges are not as resolving as the CAR50.

My Sonic Lab/Phasemation are also worth looking into for the 4Point11.

The VDH cartridges can work with the Kuzma 4Point11, but they need to be adjusted by VDH for the higher mass (18g).

For me the Umami is not in the same performacne level as the CAR50/Rosewood Signature Platinum.

@dover the cr50 is out of my budget, I am, at this point, looking for a step up or 2 from the Hana SL/ML. $4k is the max I want to spend. This is for a system I use a week a month when I come to the USA to work.
Thank you

I can give you a little of my perspective in that I have been running Koetsus, am very familiar with Kuzma's products but cannot comment on other aspects. I have been running two different new fresh authorized stone bodies on Kuzma's original Airline arm (which has a similar, locking VTA tower off axis of pivot point or in the case of the Airline, the remaining body of the arm and rail on which the air bearing travels). Both of these cartridges use the platinum magnets and I was told by someone who has one stone body and a Rosewood Platinum (whatever it is called) that the latter performs in the same league as the stone bodies. I don't know about the lower priced versions of the Rosewood, though I certainly remember the original that came to the U.S.
The stone bodies present a rich, full bodied sound with amazing bass (linear arms are not noted for bass) that is full of character if it is on the source material,, e.g. a double bass solo, drums- I listen to a lot of post-bop small combo.
I did try one of the Koetsus on a 9 inch 4 Point, an arm I like very much (though much stripped down from the longer versions), and did not like how it sounded-- perhaps it needed more adjustment, but that cartridge sounded beautiful out of the box on the linear arm. 
Oh, I had a Steelhead-- so that was one other thing we shared at one point. Good luck. My experience with Koetsu has been very positive- not the old technicolor midrange and roll off of the originals. 

I have a Kuzma Ref 2, with a Ref 313 VTA... Perhaps not quite to 4 Point 11" level, but similar mass and an arm I'm very happy with. I was in the same price range as you, and have an MSL Hyper Eminent on the way. I bought it last week. I spoke with someone who has experience with the MSL Eminent EX (base model) and the Unami. He said the latter is more of a detailed, forward sound than the similarly priced base MSL. The gold body Hyper is actually described right on the MSL site as being a bit more forgiving. It's supposed to be very dynamic, but not the last word in detail like the higher priced Ultra Eminent EX. Please keep in mind he likes the Unami very much, and his comments were in direct comparison to the base model My Sonic. I find Dovers advice really interesting, as I have also heard great things about Phasemation. I must ask Dover, what LOW priced Air Tight cartridge are you referring to? The base model is around $8K US. (-: 

Miyajima Kansui :)