Just use the settings dude.
Your question about Reputation Comparison Type - There's no "false" option on my board, I get greater to or equal. Hmm
I can assure you though that if you try the settings I suggest you will get your promotions. You can test them too, create a user account as of now, after the account has been created change the relevant values on the account to meet the specs for promotion in admincp. Then either run the promotion scheduled task or check back in a couple of hours, if everything is working grand. If not then try different settings.