Oh Man... it rings like a bell...
In case anyone is wondering, I gave the platter the "Ring Test" or "Ping Test" to time how long the platter rings. According to my hearing - I timed the ringing to last 7 seconds. I did this several times, giving the platter a good ping. Each good ping I gave it lasted 7 seconds (according to the atomic clock ).
To perform the test, I removed the platter and held it at its magnet, to avoid any additional platter damping. I used a digital clock to count the seconds. When I was not looking at the clock to count the seconds on some occasions, I thought I was hearing the platter ring for as long as 10 seconds.
If your hearing is better, it would be interesting to hear your results.
Whoever had their platter serviced by Vantage Audio to have the copper-top bonded to the platter, please let us know your results.
Mike
Anyone who thinks CDs sound better needs to listen to my system. Besides, my cables sound better than yours.
Technics SL1200-MK2 SE-1: MN Bearing + Baseplate + AL/CU Platter, Paul Hynes SR7 Power Supply, Isonoe Feet, SME V, Audio Technica AT33EV, CableMaker 1 Tonearm Cable
Technics SL1200-MK2 SE-2: MN Bearing + Baseplate, Copper Mat, Paul Hynes SR7 Power Supply, Isonoe Feet, SME 309, Audio Technica ATOC9/MLII, CableMaker 1 Tonearm Cable