33, 5'10, Athletic, 32DDD,small 32C pre-op, Inspira 415cc full profile

This site has been so helpful as I make decisions through this journey so I thought it was time that I added my review--especially since I didn't find many women with my stats.
I have always loved my smallish breasts. I frequently go braless, and I love open-back shirts, or just wearing a cute bralette (like from American Apparel) under a top. That being said, I have always loved the fuller look and would love to be a full C. But for many years I decided to just be happy with what i had. However, in the past year I have started weightlifting and I noticed that my once perky 34B breasts started to lose a lot of volume on top and now I really don't like how much they slope. And I HATE how they are when I lie on my side. I also noticed that in all my bras I started to have a gap near the top of the bra which I hated! (I should note that I am a 34B in Victoria's Secret, but in fancy Chantelle bras I am a 34C--but I have gap in those as well).
Ideally, I would like to be rounder on top and fill out bras and bathing suits better, BUT I'd still like them to be small enough so that I can still wear bralettes or wireless bras and have them still look nice and perky. My friends (who mostly have natural D cups) keep warning me not too go to big, so now I am very nervous about that! I know that I want fullness on top, not to have them be too separated, and some side boob.
I have gone to two PS and I got very different vibes from both (I have two more consultations scheduled before I decide). In those appointments I learned that I have a bwd of 12.
Doctor #1 suggested I go with Mentor 350 Moderate Profile Plus (diameter = 12.5, projection =3.9), but when I first tried those on they felt HUGE and when I saw the Crisalix images (which are the blurry screen grabs I took off of my computer with my phone) I thought the side view was too big. Also, I believe those would make me a full D?

Something that I am nervous about is the chance that I will experience muscle distortion (or animation) where the implant moves substantially (or just noticeably) when I flex or use my arm / chest muscles. The first doctor made me feel silly for even expressing concerns about that and says that I will love the way they look (by going under the muscles rather than over the muscles) that I won't care about any distortion that happens. His response helped me realize that he isn't the doctor for me. The second doctor took my concern seriously and explained that some distortion will happen but that it should be minimal because he is doing partially under the muscle instead of completely under the muscle. Also **and this is the reason that I am leaning toward going with him** he said that if get extreme muscle distortion (or any amount of distortion that I feel like I can't live with) he would do a revision surgery for free. In fact, if there is anything that I don't like (other than just wanting to go bigger or smaller) the revision surgery would be free. So amazing. This really helps put my mind at ease.
So now the MAJOR question is what size and projection to get. I'd love any advice.

Here are my stats:
Height: 5'10
Weight: 155
Hips: 42 (I have a round butt, which I love, but my top is not proportionate for it)
BWD: 12
My right breast is slightly lower than my left.
Distance across breast : 8.4 (so I am a fullish B cup)
Planning for Oct. surgery
Location: under the muscle

Questions I have:
--Doc #2 prefers periareolar as the incision site but I noticed that the majority of people on here have the crease incision. Any thoughts on what the pros/cons would be by using periareolar approach?

--Any thoughts on likelihood of muscle animation/distortion? is it just something I will notice but not others?

--Should I opt for the $300 pain pump that Doc #2 provides? (He still provides muscle relaxers and rxn pain meds, but the pain pump would deliver pain meds directly to breast area . I would wear a fanny pack for 3 days and then it would be removed. I figure if the pain meds and muscle relaxer work well enough, I could deal with some pain and save the $300.

--Can anyone help me with size decisions? Will somewhere around 350-375 CCs get me to a full C or will it push me to D/DD?

--If my BWD is 12, could I go with 12.4 diameter implant, or should I go with implants with diameters around 11.4-11.7?
Size options from Doc #2 (who uses Natrelle, whereas Doc #1 used Mentor):
I tried on 339 Mod + and thought those looked good. Those have a projection of 4.0 but the diameter is 12.4, so I am worried about going over my BWD. I have read that it is best to be no less than a centimeter less than your BWD. Does anyone have an implant that is slightly larger than your BWD?
I also tried on 350 High Profile which has a diameter of 11.4 and a projection of 4.9. My worry with this one is that I won't have side boob or that it will make my boobs look too far apart. The next size up is 375 HP, diameter 11.7 and projection 4.9. So, same projection just a little wider. Unfortunately, I didn't try this one on.

The next doctor I see uses Sientra, so that will introduce a whole new mix of sizes! :-/ I looked online and it seems like 355HP might work (diameter = 11.5, projection =4.5). There is also a 375 HP (diameter = 11.7, projection =4.6).

SO MANY DECISIONS!! Any help or advice would be appreciated!!

Doc #2 just sent around a newsletter saying that they now carry Ideal Saline Implants that feel like silicone and don't ripple. I'm intrigued... Has anyone gotten these implants?