Mark CMG
Creative Mountain Games
Sentient species (races? Never cared for that misapplied term) are best dealt with in a setting context, IMO. Unless a ruleset is developed for a specfic setting, it might be best to deal with that matter as notes on how the ruleset might be employed with various types of settings, in an optional or variant context. If sentient species are assumed to be the norm for a ruleset, it might not function as well once those sections are excised. However, as an addendum with a setting in mind as a separate overlay, such considerations can be handled more completely, showing how other species fit in the big picture.