Again, I think you're mistaking my position for one based on principle when, in fact, I'm just doing risk management.
		
		
	 
This makes this much more interesting regarding your stance.  If I read this correctly, it means that you tend to oppose cross-gender RPing for pragmatic rather than principled reasons.  Would it be out-of-line for me to further speculate that if a male player with a proven track record for good cross-gender (say, if you played in another group where he was also a player) wished to play a female character in your campaign, you would allow him?  If so, would it be also right for me to infer that this doesn't make gender unique in this regard?  The comments you have made regarding atheists and religious characters seems to imply that gender is thus not ringfenced - as the more absolutist opponents of cross-gender RPing have argued - but that in your judgement there is greater "balance of risks".  Could I therefore be 
really presumptious and go so far as to say that you're not actually against cross-gender RPing at all?
	
	
		
		
			If the GM has had a negative history with cross-gender PCs, then they should not be allowed. Period.
		
		
	 
The problem with this is that it curiously moves the focus from the player to the GM.  Again, as with fusangite, it seems that whilst your position is rhetorically more ardent, the bracketing of female characters with "evil, trollish and marsupial" ones implies a more measured opposition than stated.  Again, I would posit the same question as above: if you knew a player to have RPed cross-gender in, say, another group, and done so well, would you still oppose that player RPing cross-gender in your campaign? Or is it your contention that no player can ever RP cross-gender well?
	
	
		
		
			If the player cannot handle the different gender of the character, then it should not be allowed. Period.
		
		
	 
This seems antithetical to the above statement.  The previous quotation implies that the GM should authorise cross-gender characters or not on his own personal history; this signifies that the track record of the player is paramount.  Indeed, I would hold this statement to be largely true but the above one not.  As you have agreed, however, the same applies to atheist players and religious characters.  It is reasonable to mandate that those players incapable of RPing cross-gender should be prevented from doing so - in the same way that those who cannot play clerics should be - but this does not implicate a blanket ban.
	
	
		
		
			So, in between that time and now, some things have changed. The hyperbole and bitterness displayed here has, ironically, made me more comfortable with the decision I first made.
		
		
	 
I'm sorry that the boards have made you feel that way.  Many contributors from both sides have posted cogent and polite arguments, and I hope that you would listen to them (especially those I agree with  

 ) and ignore the ranters, bashers and name-callers.  Since I think you've more or less made your mind up, can I offer one last appeal.  Let the guy play the female character - he seems pretty balanced and a fairly decent RPer, and the archetype hardly seems stereotypical, crass or offensive - and see how it pans out.  If you still feel really uncomfortable, perhaps you could ask him to retire the character.  Hopefully, a positive experience will change your mind.  It seems that most of the posters arguing against cross-gender aren't doing so from any dogmatic position but from the simple experience of some poor RPers.  Just as, say, a single atheist playing a cleric badly shouldn't deter you from general principles, so isolated cases ought not avert you from a general course of action.  Judge the player, not the principle: I don't know the guy in question, so I'll leave it to your judgement.  To argue for a general blanket ban seems excessive.