Would you trade a brand new in the box XD-40 sub for a used Glock 27 with nite sights? The 27 comes with a dillion prec. pancake and a Kramer IWB holster. I have had several glocks but never .40 cal. Just wondering if this would be a good trade or if I should keep the XD. I haven't shot it yet but it's ergos are great. Thanks for any input.