Hi Koru Kid and thanks for the message.
I am in LAX about 7 times per year and have never had issues with officers regarding my passport in its current state with MALE as gender. (I wish it had FE in the front!!

) The only thing I notice happen everytime is triple takes, silence then stamp stamp "Good work" and I'm away. Are they trained to say this?? haha.
I have travelled with another Pre-Op transsexual to LAX and her gender is displayed with a "-" DASH and this caused more attention hence I have opted to keep the MALE.