If USNA is your first choice, USMMA/KP should be your second, assuming you like being on the water.
I'll go out on a limb and say I think this is good advice that is hardly mentioned and applicable only to the go-for-broke types. My son had his heart set on USNA (still does but even more so now). Any other school would have been a disappointment to him. His backup plan was NROTC but during the application process to various schools, it was quite evident to his mom and me the only school that mattered to him was USNA. At times it felt as if we were watching a high wire act without a net.However, if USNA (or any other SA) is truly your preference and anything else would be a disappointment, I recommend you put all your eggs in one basket.
In my case, the answer was NO. If you are heartset on one SA, then DO NOT apply to multiple. Long story short, my original intent was to go to go to USAFA, and I would have had it, but because I applied to multiple, I am now going to USNA. Don't get me wrong, I am excited for it - especially more so now than before, but if you can only really live with one, then just apply to that one.
Huh? Your advice seems non sequitor to your experience. What if you had not been Appointed into USAFA, and then did not get NAPS? You'd be high and dry.I applied to both USAFA and USNA and got appointed to USAFA and got NAPS as well (I did not get a nom to USNA). In my case, I had dreamed of USAFA since age 11, but gradually began leaning towards USNA over the past couple of years for several reasons. Now I'll be heading to NAPS. For most people though, I would advise that you put all your eggs in one basket if you really want to attend a particular academy.