... is from The LSAC's SuperPrep found here: https://www.amazon ... .com/Official-LSAT-SuperPrep-Champion-Prep/dp/0979305063/ref ... was eventually released with the SuperPrep series above where you' ... and C as well. (Not to be confused with C2 from SuperPrepII ...
I think PTC is included in the first Superprep Book, along with PTA and PTB, and PTC2 is the one "new" PrepTest included in SuperPrepII (the other two are previously disclosed, I believe 62 and 65)
@"Sean Siriphan" there was also a paper of corrected typos that came with my book, I posted it here: https://7sage.com/discussion/#/discussion/7611/errors-in-the-official-lsat-superprep-ii