It can simply be summarized in just 1 word.... MOMENTUM.
Apparently, there is a lot going on in the background prior to taking those kinds of trades and it's kinda impossible for me to write them all up and it will encourage the not-think-for-yourself attitude

1. Bias is KING! Actually, no matter what style of trading you use you will always need bias. The difference is you need to be DEAD SURE that the price will go your way whether it's for just 2 pips or 5 or 10 or even 100s. What? It's impossible! But it is possible as shown in my long list of NO SL and ALL IN trades. If you scour the internet you'll find lots of examples of this being done and the traders were DEAD SURE that the price will go their way. Confidence can be attained as it can be trained. Parents of introvert kids will often send the kids to public speaking course or singing course or something that will demand the kid to appear in public to boost his/her confidence. Same thing applies here. Train, train, and train even more until you numb your nerves. Tom Hougaard talked about this repeatedly and many other heavy scalpers emphasize this as well.
2. You are engaging the PRICE MOMENTUM! You MUST be aware of the momentum of the price. This can be how the price move (up / down), how frequent it is doing during the moment, how is it compared to the previous momentum because the current momentum is being judged relative to the previous momentum/ condition. The incoming tick, how frequent is it, how far the price jump/skip the immediate price above or below.
3. Heightened senses. When your life is on the line you will definitely trigger the fight or flight response and everything might seem to move super slow or you will be super sensitive to what's going on with the price and chart. Those who have never experienced this sensation don't know what I'm talking about. If you want to try, do it on a tiny live account and trick your brain to think that "this is the only money I have left in this world". Sounds ridiculous? I know. Put yourself in a situation where you are totally uncomfortable watch how your fingers and body sweat a lot. There is no other way to explain this unless you are in a dangerous situation. Well, don't put your life on the line but just put your money instead. During this trance-like condition, a minute will feel suuuuuuuuuuuuuuuuuuuuuuuper loooooooooooooooooooooooooong.
4. Trade only during very liquid times or when the pattern is vivid. There are 3 times during the day when the market is very liquid while there are different times when the pattern will be very clear. You need this because this will enhance your odds with clear bias and in turn boost your confidence even more.
5. If the time to trade coincide with high-impact news then there are 2 ways to do this. First is by entering the trades before the news event either by using market order or pending order. The second way is to gauge the move post-news event when things are a bit smoother though still very fast and violent.
6. Measure the risk properly so you won't get stopped out too early in the game. The risk the space. You can do small space with bigger entries or you can do bigger space with smaller entries. This is how you must arrange your layers. Even though you at times you will put your whole account at risk, it doesn't have to blow it. This is why you have layers. You can always stop the bleeding if things don't go your way and the only way to do this is when you are in a super sensitive state (#3). NO SL and/or ALL IN doesn't mean you just drop your account when things go south. Manage the loss, think fast, decide fast.
7. Manage your capital properly. I already put a post on this on the 1st page (1st post).
8. No negative balance protection. Make sure your broker adopt this risk management approach. In the event when either your SL is not honored or your account hit MC, you want to be sure that the broker won't go look for you for the extra margin needed to cover the total loss



I hope this helps whoever needs the knowledge!