... to increase my score by 13 points. I am currently studying ... long term and realistic. A 13-point increase is a big ... a lot easier to jump 13 points from 147-160 than ... way more realistic for that 13-point increase than 10 weeks ...
What exactly were you trying to explain on your addendum? The 13 point increase? Usually addendum's for LSAT scores are to explain a low score or score decease, but a 13 point increase is defintley something to be proud of!