Kuzma Stogi S tonearm:

The Kuzma Stogi S Tonearm is of a unipivot design with a unique, rigid headshell made from a solid aluminium block and a base of solid brass which control all vibration and facilitate stability of the tonearm as a whole. All parts of the arm are machined from blocks of solid metal, in order to provide damping and minimise resonance. The polished pivot point is sited in an oil well, which provides extremely low friction and bearing vibration. The height is at record level for optimum tracking. The silicone damping,controls resonance of the cartridge and also gives stability in azimuth direction. Two counterweights allow easy adjustments of tracking force and azimuth. Kuzma Stogi S Fine azimuth adjustment is achieved by rotation of a horizontal screw in the counterweight, which does not affect other tonearm parameters and which makes adjustment very simple. Kuzma Stogi S Wires are in one uninterrupted piece from headshell to RCA phono connectors. By special order, wiring can also be fitted in for balanced connection.
The working principle of the unipivot is curious and simple. As the name unipivot says, the arm rests on a single point. In fact the Stogi rests on that single point and inside a container filled with liquid silicone, that allows the arm to work properly and that also improves vibrations. Kuzma Stogi S arm works perfectly. I just had a complaint with this arm. I wanted a handle to control the arm manually (rise it from the disc) but when asked this question to Franc Kuzma he told me that almost all the unipivot come without a handle because this device change the weigth simetry of the arm and doesn't allow a precise azimut adjust.