Just tested the 123 Rule and 2B Rule combo in crypto trading and honestly, it's a game-changer for catching reversals. Let me break down what actually works.

First, understand that markets move in three layers. You've got the main trend that can run for years, then the correction waves lasting weeks or months, and finally the daily noise. Most traders get stuck in the noise and miss the real moves. The key is knowing which layer you're playing in.

Now, the 123 Rule is pretty straightforward as a reversal signal. Here's what you're looking for: the trend line breaks the wrong way, prices stop making new highs or lows like they used to, and then you get a key breakout that confirms the shift. Hit any two of these and you've probably got a reversal brewing. The beauty is you can apply this flexibly - the order matters less than getting all three conditions eventually.

But here's where most people sleep on the 2B Rule. This is basically the early warning system. You see a false breakout - price punches through the previous high but can't hold it, then crashes back down. That's your signal something's about to flip. In downtrends, you get the opposite - a fake break below followed by a quick recovery. The 2B Rule catches these reversals earlier than waiting for the full 123 setup, which is why I use it as my entry signal.

The real move is combining them. Use the 2B Rule to spot when things might be turning, then dip your toes in with a small position. Wait for the 123 Rule to fully confirm, then scale in. This way you're not catching falling knives but you're also not leaving money on the table waiting for perfect confirmation.

One thing though - crypto is insanely volatile. Your trend lines need to touch at least three points to be solid. Two-point lines break all the time. And always, always set your stop losses. The 2B Rule works but it's not foolproof, so manage your risk like your trading account depends on it. Because it does.

Build your system, test it, refine it. The market rewards patience and discipline.