So I know the whole premise of your strategy and journal is to trade gappers, but my first thought is to abandon that and stick to 24 or less stocks that you trade 90%+ of the time. Unless the gapper strategy is so consistent with giving you profits, you should try to figure out what has been working for you and try to nail down into that. To me, and my experiences, I couldn't care less whether a stock is a big gapper that day. But that's just me.