In the past few years, I have been only using Active Boundaries/LER combination or the Supply/LER combination.
One disadvatnage of the divergence analysis is that one needs to tune the divergence to the volatility difference between price and volume. This is a difficult process that is indeed non-reliable and should be manually checked. Hence, when I scan a large number of stocks, this divergence analysis could point to stocks that are in fact not interesting. LER, AB and Supply are easier to tune. I tune them ones a week.
Pascal