You can also add mass by using a tonearm wrap. It's neither better nor worse than adding weight at the headshell - just different. A tonearm wrap will also damp resonances in the armtube, especially if your armtube isn't internally damped.
You can use teflon plumber's tape; that what I did and it worked fine, although it wasn't pretty. You can also use a commercial product like this:
http://www.atma-sphere.com/products/wrap.html
I used both methods to try to match a Denon 103R to my Well Tempered tonearm. Both helped, both sounded different, but neither really solved the problem. IMO there's just no substitute for a high mass tonearm when you're using a low compliance cartridge.
David
You can use teflon plumber's tape; that what I did and it worked fine, although it wasn't pretty. You can also use a commercial product like this:
http://www.atma-sphere.com/products/wrap.html
I used both methods to try to match a Denon 103R to my Well Tempered tonearm. Both helped, both sounded different, but neither really solved the problem. IMO there's just no substitute for a high mass tonearm when you're using a low compliance cartridge.
David