It looks in line, it seems to not have slop, but in some gears it's hard to find the 'sweet spot' and even then, it's not very quiet. I've got another I am going to trade in tonight to see if that helps, but really, I'm thinking I need a NOS derailleur of some sort. That's why that Accushift stuff the guy is selling on eBay looked so good. THis one in particular:
http://cgi.ebay.com/NOS-Suntour-GPX-...mZ280257892643
But of course, I am dreaming, since I could never get a low enough low with that.