Changed the Size to 700 Cc Allergen High Profile - Scottsdale, AZ

So went to see my surgeon for a second preop appt yesterday and let him know my concerns. I currently have 480cc saline implants And having some rippling in the upper pole as well as underneath. Dr said ripping happens more often with Saline. Anyways I was wavering with sizes. Worried that 650 was going to be too big. But after enormous research looking at before and after photos it appears my breast won't be much bigger than they are now and my surgeon agreed. He said at least a 700cc change would be best. He said another option he could do is saline and he can overfill them to like 730. But then there is the problem with rippling again. We also talked about incision site. Armpit or under the boob. I really don't want a scar under my boob but he said he can't get a 700 cc implant through the armpit :'( .. So I have no other option than to do under the boob. It terrifies me ! I have visions of the sutures popping open and my implant coming out! I shiver at the thought . He said he can get. 650 in my underarm with a Keller funnel.. why not 700? i should have asked him to try.. We agreed to do the 700s but I'm really not at ease about The incision site, i love that my boobs dont have scars . well i guess its too late now :( Surgery is Friday!! Hope all goes well