@rauliruegas I will answer all your question. But your questions have an underlying tone of disrespect if things doesnt match your beliefs. Believe me there are many ears better than yours and mine, only if we have an open mind to accept other's experiences, we stand to gain something.
Anyway here are some details from my memory.
The 927, Nantais Lenco and Feickert Firebird were placed on the same BOX Furniture rack. 927 had 2 tonearms, 997 and Acoustic Systems Axiom. Cartridge were a combination of TSD-15, JSD Platinum & Phasemation PP-2000. The Axiom was swapped between 927, Nantais Lenco & Feickert and we also swapped the EMT and Phasemation carts various times to get the feel. The phasemation and EMT ultimately are not very different in terms of tone but phasemation seems to make things more refined and hifi, more pin-point. EMT carts are a little more flamboyant and raw, more studio like.
When I had the Technics SP10-Mk2, Mk3, Nantais Reference Lenco and Loricraft Garrard 301, the tonearm was a 47 Labs RS-A1 with Audio Technica ART-9, rack was a Hutter Rack from Austria. Later I also had EMT HSD-006 cartridge to replace the ART-9