I'm planning to get a 45 ACP compact and can't decide if I should get the XD 4" or the XDm 3.8". Problem is, I'm in California and can't get or try the XDm so I can't directly compare. I do know I like the XD. I can get the XDm version if I pay more using the single shot exemption thru a special FFL, which I'm willing to do if it's "better" than the XD. Anyone have experience with both who can comment? I hear the ergonomics on the XDm are slightly nicer but honestly would really appreciate a more informed compare and contrast. Thanks in advance!