when daytrading, and trying to make smaller percentages, i often am fighting the bots.. but with the bigger position trades, i just put my orders in where I want to buy and wait for the market to fill me or not.. I dont concern myself with level 2 in the big trades.. and I trade alts and btc the same.. read the chart to know how safe base cracks have been in the past and then set up your orders accordingly.. I almost always layer in and out..