I thik that a creed can be a good initial screen.
I think Russell's Hard Limit Questionaire for Doms and subs makes a better starting point.

At least you have to give it some thought. These Creeds are all written out and are in someone elses words.

Again, no knock on Selash. If after exploring the lifestyle, you think it's the perfect description of how you conduct yourself... then more power to you. Me, I still prefer to pick, choose, and reframe the ideas to fit my style and personality. I've never been much good at being formulaic.