He'd been hoping Qui-Gon would be able to see what was wrong just with that one repetition. Still, he's not going to let disappointment keep him from doing as his master directs. Maybe it's too subtle to pinpoint that easily. Or maybe Qui-Gon is turning this into a teaching moment. It certainly wouldn't be the first time he has.

So Ezra raises his lightsaber into position again and starts to speak as he moves. "I was attacking. You were defending. I knew your form was too strong for me to break with strength, so I had to try something else. Agility is where I'm stronger, though, so-" Step, strike, strike, strike in slow motion. "-I wasn't trying to land a hit here, just throw you off by trying to keep up with my speed. And you're older. It's a little harder for you to twist and turn like I can, so-" He deflects an imaginary lightsaber, then twists sharply, just like he did before. "-and that should have given me an opening on your side here, but only if I aimed it just right. But I know how tall you are. I know how you hold your arms. I know if I swing my lightsaber like this-" His blade comes around and halts in midair.

Too low again, by a couple inches. Ezra scowls intently, as though he can make his lightsaber give him the answers for why it seems bound and determined to head toward where Qui-Gon could have caught and deflected it.

"It's almost like you're taller somehow. Are you wearing different shoes?"

If so, he doesn't need to be. Qui-Gon, you're already tall enough!