After the CC, I have worked through PTs 1-4. I'm planning on taking the test in September but I can push it back if need be. My scores are 162, 160, 162 and 169. I wouldn't put too much emphasis on the 169. Before 7sage, I was working through Kaplan and so I might have burned some of the PT 60s (I was doing individual sections as opposed to full length tests). My diagnostic at the very beginning (back in November) was 148 so I have had significant improvement already. I'm also worried that I have peaked in terms of improvement.
Should I start taking PTs 20+? Is it worth it to go that far back? I know that the level of difficulty tends to change. September is getting closer and closer so I know it would be difficult to go through all 80 preptests. Plus, I would like to save PTs just in case I don't get the score I want on the first try.
By T3/4 do you mean top 3 or 4 schools or tier 3/4 schools?