Once you're chain is clean and you have waxed it, using a product like finish wax lube may be useful in maintaining it. If you have a dirty chain and use finish line, you'll just end up with internal grit that has some wax. The entire wax/don't wax approach is fascinating. It was THE way to do chains for a long time, then fell out of favor. The internal pressure chains rollers exert is enough that there is very little wax left inside a chain doing any real lubrication so I personally think that a serious, thorough cleaning of the chain is as important to the process of using wax as the wax is itself. I also think wax is nearly worthless unless your conditions are very dry. It would take very little rain/dirt on a chain to grind out any small bit of internal wax. That's why I keep a master link on all my chains and clean them fairly regularly to ensure a silent, perfect shifting bike. Totally a waste of time from one perspective but when it comes to biking, I'm pretty happy cleaning bikes, riding them, watching race vids, chatting on forums...whatever. Pretty much fun from any direction.