Learned that matchup the hard way, though thanks. Mind, you're right; when I'm doing things right, Mu is amazing fun to play. First netplay win against a Ragna ever, and I admit that the hilarity of opponents being too hasty to remember the laser coming from offscreen isn't something easily forgettable. Or lacking in hilarity for that matter.
Guess I should heed the advice when it comes to combo practice at one point or another, as much as I've never had too much luck thus far with that.
Still might just sub Jin or whoever'd be a decent counterpick against Lambda out of sheer petty spite, though.