Sure have!
I've only got the one, so I'm afraid to modify her.
Of COURSE she is beautiful as designed, and works great for me!
That being said, I feel like my vaping style has shifted since I first bought her, and now I require a little more airflow...cuz when I try to hit it the way I do now, she floods cuz I'm pulling too hard...and more airflow would fix that. Which means I could keep her in action!