Not what you want to hear, but you want opinions...Don't even bother man!!!!!!!!!!!!! Seriously, 10 point jumps aren't flukes on the LSAT. They're earned. The numbers seriously, seriously, speak for themselves. Why risk sending a statement that might rub some adcom the wrong way or be interpreted in a negative way? Whatever you write is going to be skimmed over and boiled down to like 5-7 words in their minds. First...messed up...second...better....duh.IMO, if you're going to even bother writing an addendum for this reason, don't even bother with the "this one represents my abilities better" mumbo jumbo cute stuff. Straight up tell them the reasons you messed up on your first one and move on.I only tell people this stuff because adcoms will be reading piles of useless/needless addenda from people who have to compensate all sorts of insecurities, they all read the same, and you don't want to be part of that demographic. Ivey advises against LSAT addenda for all cases except two: #1 Past, provable, history of poor performance on standardized exams and #2 English not being your native language. Check out her book if you think I'm just another LSN lunatic. Congrats on a 10 point jump, though.