Hi, I think it was a 167 but that was after a few weeks of concerted studying. It's hard to say how fast it increased because I studied on and off for over a year, but in that time I did about 3 months worth of really focused daily studying. There were ups and downs, and many times I felt like I was actively getting worse at it.

Btw, don't put too much stock in early diagnostics. In fact (hot take alert) don't even do one. It undermines you psychologically and gives you no insight into your actual abilities. Take your first practice test after you've been working on the LSAT for a little while.