If anyone's curious I'm going to be implying that Yang has a rather acute ability to sense Ki... more so than an average Z-fighter. Take for instance his suspicion that Raditz (aka the large Ki he senses) has more power that he still isn't showing yet. I'm also going out of my way to emphasize how much control Yang has over his Ki, as that's going to be another unique trait of his... that he can be more precise about how much he raises or lowers his power level.