Aisip here is a thread by Tom W. Lyons, who else. He has a great Tweak for the silver tonearm. Tom also addresses the conterweight question. Great thread I know you will enjoy it.
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188&openusid&zzTwl&4&5#Twl
Ron
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188&openusid&zzTwl&4&5#Twl
Ron