I have decided to go back and switch implants Sientra 695 moderate profile for 800 CC's hp. Do you think I will be happy?

It is impossible to give you a precise answer based on such little information and now examination. I would say though, that increasing volume by 100 mL may not produce as much change as you are looking for. Also, the dimension differences between the different profiles can be very minimal.

Going up 100 cc will give you about another half a cup in bra size.  It's a relatively small increase, compared to the implant size you have now.  Ask your surgeon to show you two sizers (695 and 800 cc) next to each other.It's hard to know whether this is meet your needs.  Is it possible that you need a breast lift instead?

Thank you for your question. "Tissue based planning" relies on your chest and breast measurements and is the safest way to ensure good long term results. Your surgeon should determine what size and projection are necessary to give you your desired result based on your body's measurements. The best way to assess and give true advice would be an in-person exam. Please see a board-certified plastic surgeon that specializes in aesthetic breast surgery. Hope this helps and good luck with your surgery.

Thank you for sharing your question.  Unfortunately without an in-person discussion as to your goal results, or a full series of photographs that demonstrates your before, current, and goal appearance it is difficult to offer definite advice.  For most women 700cc implants are substantial and increasing to 800 will make a small incremental change in appearance but can add to further risks - tissue sagging, thinning, implant displacement//malposition, etc.  I hope this helps.

This is a very difficult question to answer.  First of all, without a picture, it is impossible to answer.  Second, only you know what size/ shape you are looking for so it is hard for anyone other than your surgeon to help you answer.  From a technical perspective, the implant exchange surgery is usually much easier to recover from than the original placement.  Sorry I couldn't be more help.  Best regards, Dr. C