Lead With Your Head
Most think about pressure in terms of weight, as in how much of it they have, how well they can distribute it, and how effectively they can stack it onto an opponent. But weight is passive. What turns weight into pressure is direction, and direction starts with one thing: where your head goes.
The head is the leading edge of top pressure. Not the hips, not the chest, not the shoulder, the head. When you're working to flatten an opponent, to break their frames, to make the top position feel genuinely suffocating, the question to ask is simple: where is my head pointing, and is it driving forward? If the answer is anywhere other than into your opponent, you are leaving pressure on the table.
The mistake most people make is being shy with their head. They keep it back, they keep it up, they stay comfortable, and in doing so, they create a kind of top position that has the appearance of control without the substance of it. Their opponent can still breathe. Their frames still have space to work. You might have weight, but weight without direction is just gravity, and gravity alone doesn't finish matches.
When you commit your head forward, driving it into the mat beside your opponent's ear, or into their chest, or into the pocket beneath their chin, something changes in the whole structure of your body. Your hips follow. Your chest drops. Your base flattens and widens. You become harder to move, not because you consciously adjusted your base, but because the geometry of leading with your head forces the rest of your body into a more oppressive configuration. The head pulls the pressure with it.
This is why the top player who stays long, stays low, and keeps driving their head forward is so difficult to survive under. They're not just heavy, they're directional. Every time their opponent tries to create space, they meet more head, more chest, more committed forward pressure moving into the space they're trying to open. There's nowhere for them to go.