Slap, I'll take your word for it. I'm happy to make strong postions on things I have spent a lot of time doing or thinking about, but Warden's rings are something I am merely aquainted with.

Any tool that help visualize and break down a complex problem is good. I just caution that the best tool applied incorrectly or to any problem that happens to come up, is likely to fall short. So, "proceed with caution," but by all means proceed!