Williewonka, I had the same skepticism about Michell's Tecnoweight. It's amazing that a counterweight can do so much. Before you splurge on a Tecno-arm, check out this $5 mod to your RB250:
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188
-Mark
http://forum.audiogon.com/cgi-bin/fr.pl?eanlg&1032024188
-Mark