How useful is W$SD as an indicator of solid play? (subject edited)

[Floyd Moseby]

I realize that it's kind of a bland question, and it's begging for an "It depends" answer, but I'd be curious to know how much the regulars pay attention to this particular stat.

I have always been in the 48-53% general range over the course of my play, and I'm not really beating the limits I have played for much more than 1.5-2 BB/100 hands. I know that it's entirely possible to play perfect poker and yet lose a large % of your showdowns over the short run, but what kind of general assumptions (if any) are out there about W$SD in correlation to BB/100?

If it means anything, I'm more interested in full ring play than short handed.

Thanks for whatever responses this gets.