I initiated my vinyl renaissance 4-1/2 years ago by purchasing an SL1210 M5G. I have done some similar tweaks to similar effect. I don't have the KAB power supply, but I have his fluid damper for the tonearm. I don't have a 454g weight but I have a KAB record grip. Instead of an acrylic/rubber mat sandwich I have a felt/sorbothane sandwich. Instead of stuffing the armtube with cotton and shrink wrapping it, I wrapped it with PFTE pipe thread tape, including the knurled collar for attaching the headshell. I also have a Sumiko headshell plus an LP Gear Zupreme one, which is very similar and both have the high quality cartridge leads and tags. Finally, instead of a chrome/steel plinth cover, I've platformed the turntable onto a very thick and heavy maple butcher block cutting board, with a Vibrapod assembly between the turntable and board, and gel pads between the board and the shelf it sits on. Every one of these tweaks has contributed significantly to more clarity, lower noise, better dynamics, and extended frequency range. Upgrading from a lightweight cutting board to the 30-lb. behemoth I have now was particularly significant.
Anyway, I agree that the Technics is a great fundamental platform and easy to improve with low cost tweaks and accessories. I can go to my local store and listen to turntable rigs up to around $7K and not feel like I'm missing anything, and may have an advantage in speed accuracy and the sensations of better pitch, rhythm, and propulsion that come with it. Only at the $12K DPS/Ayre rig do I begin to acknowledge an improvement.
Anyway, I agree that the Technics is a great fundamental platform and easy to improve with low cost tweaks and accessories. I can go to my local store and listen to turntable rigs up to around $7K and not feel like I'm missing anything, and may have an advantage in speed accuracy and the sensations of better pitch, rhythm, and propulsion that come with it. Only at the $12K DPS/Ayre rig do I begin to acknowledge an improvement.