Are good frames?

Hey I wanna know if under and hit frames are good just to know
under works well with tN’s upper mode for attack. it extends the angle of attack, almost perfectly:
[Image: oBe1T6a.jpg]

under doesn’t have a ton of LAD, so other than this configuration (and the stock one with bK) i wouldn’t use it.
Under is good for uppercutting, and Hit is good for unbalanced attacking power.