Would it be unreasonable to use sense motive to "sense" the armor class of an object/person? I understand that it is using Sense Motive to try and learn metagame information, but I have an idea for a bow using character who can use Sense Motive to "know" he can hit a target, with possibly a feat or PrC that would allow the character to take 10 on a bow shot, mostly for show like if he is in an archery competition. So anyways, like I said at the begining, would that be an unreasonable use for Sense Motive?