relying on an inside trip is also a real problem because you can't really keep it in the match unless you're sort of "up" in your stance, which isn't gonna maximize leg attacks. Its the type of technique that should feel like a surprise to the whole room, therefore it doesn't really have a place in an someones overall style. His shrug is similar, its a great technique but if anything it stagnates other options. Compare that to John Smith's so single, which forced reactions, leaning, grabbing and made his elbows basically unstoppable.