Took my first full-length PT three months after studying fundamentals so never had a true colddiagnostic, but I would assume it would've been around low to mid 150s. First official score was 170 and second official score was 178.
I think I’m missing something- the title of the discussion says 158-168 in two weeks, but your colddiagnostic was 163 and you’ve been studying since June?
My colddiagnostic was a 157 and my first PT after the CC was 168! The CC helps so much with LG, especially if you do the problem sets after the lessons.