I'm sorta having the same problem. I can almost always BR in the high160s/low 170s, but fall almost 20 points when doing it timed. It might be a stress thing, but how do I fix it?
... . A score in the mid 160s requires knowledge of the fundamentals ... trying to increase from the high160s to the low 170s, then ... , but a score in the 160s can be accomplished with lots ...
... want to score in the high160s to take the October exam ... be consistently scoring in the high 150s. It took me literally ... score in the low to high160s. You said you get perfect ...