This is an offshoot of a previous thread I started, on the "light" versus "hard" sparring and how that kind of divides down the emotional line, rather than the physical power of strikes. I wanted to ask my trainer, Kru Nu, about this. He's been teaching Muay Thai for 25 years or so, grew up in a gym that had the very, very early westerners who lived and trained in Thailand, has raised countless Thai boys to be stadium fighters and champions; and has had his fair share of "what the f*** was that?