When I re-submitted I was only told the letter is so the board knows that YOU actually want your package re-submitted. There's been some shadiness in the past where Rec's have sent packages back in for guys who've given up and moved on with the hope of getting quota pts. or whatever. Guy never shows up for OCS, oh well. If your Rec' is really in your corner then he should tell you what needs fixing be it PRT, test scores or whatever. Your college transcript and your physical are the only things you really can't do anything about so just try to put a better foot forward on your re-submit. Take a another look at your motivational statement; are you telling them WHY you want be in the Navy or WHAT you have to offer them? Good Luck!