I've heard of some awkward moments here from a female professor that changed her name after several publications. One notable case includes a grad student criticizing the early work of said professor, published under her maiden name, with the professor in the room.
grad student: "And you can see the problems here with this paper by Jones"
professor: "Yeah, that's me, that's my paper under my maiden name"
grad student: "Wait, what?"
It seems from my anecdotal experiences that more females don't change their names if they already have significant work done in academia, but that's just my anecdotal experience. I guess it's up to you to decide whether you've crossed a threshold where you shouldn't change your name.
But regardless, I wouldn't try to go half way whatever you decide. Go all or do nothing: change it on everything or don't change it at all.
