ROTC...humm...best commissioning source?....hummm......well, we are all entitled to our opinions.
Seriously though, Matt, if you want to know the ins and outs of NROTC, use a search engine to find NROTC Administration Manual or Naval ROTC Administration Manual. You are more than welcome to see if there is any valuable information on my unit's website at www.ou.edu/rotc/naval. I am pretty confident that if you have more than 30 transferable credit hours, you are ineligible for scholarship, but I've seen weirder things happen. As my Papa always says, it doesn't hurt to ask, 'cause you already know the worst response would be a 'no'.