Not knowing anything about the system, did you think about checking the forums over at Wizards? Heh provided you're talking about that version! I've found that when I'm curious about some rule in DnD, if I check the forums, most of the time someone has asked and gotten an answer.
Checking here is good too by the way, but I like to check as many different places as I can to get the best number of responses.
Now from a GM perspective with me not knowing those rules, it does sound to me like he would only be able to do one or the other. Hope you get your answer.