In short, the OTCCD Matrix tries to grab all the potential stocks before the big runup (definitely not after). The Pulsing Stocks are there to play the current MOMO and/or bounce plays daily. They are the stocks that the matrix is unable to detect and have gone up quite a bit, but are highly playable due to the momentum and profit taking nature.
If the stocks in the matrix have ran up a lot, then you can play the bounce when they fall. The idea is that the stock leads have to be playable by traders, always uptodate, and should have enough liquidity and momentum for traders to play. Hence, no one should ever get stuck on my Stock Leads, and most if not all of them have nice spread.