Yes, that is basically it.
The average peaks is used to evaluate the current accumulation comparatively to a past average of "strong" accumulation. The result is that you know that today's accumulation is "weak", "strong" or "very strong".
You do not need an exact "line in the sand" type of method, because there is no such a thing in trading.
It is all blur and uncertain.
You'll also need to put your "accumulation" in context with the sector, the market, the fundamental elements such as earnings dates, dividends, etc... to try to see why the accumulation is strong.
Pascal