My concern is the spike that usually occurs especially when you are in one direction and the market moves in the opposite direction.
Usually, that spike is a market manipulation. Mostly this was cause by bad news which makes the price drop to make institutions buy at a discounted price. Some people are having a hard time to determine if it's a reversal or continuation. So you must have a confirmation in order to say that it's a sign of reversal. Just like most traders used, which is "change of character".