The chinese five element system is made from the generating and overcoming relations (pentagram, pentagon, resp.) if the labels you put on this structure don't produce a nice "story" when you traverse along either cycle (such as with the five fingers or whatever) then it doesn't fit very well now does it?

Your labels are similar to the ones Keith uses in Impro, they have been very insightful on my own journey so I think you've probably helped lots of people with your model, if this hint can help you improve your model then that would be a positive.

One cool five that I've found is the ancient egyptian model of eloquence, may want to look into that.