Breast augmentation, low set breast chest wall deformity - what CC's and profile should I choose? (Photos)

I’m having my breast done, and have always hated my pigeon, long chest. So I’m getting this done to mask it a little. I just want advice. My surgeon has suggest over the muscle 350 teardrop tall height moderate plus. i had been to another surgeon who had said the same about teardrop being best because of my chest wall. However he would only ever do a 300cc and never any bigger due to narrow chest. So my question now it, I dont want big boobs I just want more shape and more upper fullness but worried on having big low set boobs. So my surgeon has said either 330s medium height or 350cc tall what is the diffrence with medium and tall? And what would you suggest with my chest wall? also when I’ve looked at mesurements both them implants are a bigger width that my messurments is that ok? Or avoid? Or do I go with 305cc tall, which i keep thinking because I don’t want massive boobs. I just want them to look the best they can with being low set. Advice please