Hi Katie,
I was having that dilemma myself! I stuck with high profile as I’m having a larger implant size (550) I think that will compensate for the base width of the implant. High profile has a smaller base and higher projection, moderate plus has a wider base and lower projection. It depends the look you’re going for and how wide your chest is. If your surgeon suggested high profile I’d stick with it as if he thought u would need mod plus I’m sure he would’ve said. Hope this helps! Xx