I agree with you that the difficulty settings are biased and thus poor, but I'm not sure your proposed solution matches the existing settings in perceived difficulty, nor do I think that such a method could ever be made to match them because they can create all kinds of problems (such as being unable to make critical perception checks early on, or being unable to use starter skills due to low speed).
Last edited by artemis42; 12/07/14 10:56 AM.