OK, I got it, but I had to stand up and point the Wiimote wayyy up to make the condor glide normally. I checked all my sensor bar settings and everything seemed fine too... I also did it Wii Sports Resort "Airplane" style and it seemed to help.
I'm sure there's going to be another glide part in the game and I want to get it right next time (otherwise they wouldn't call the star "First Flight"). :/
Oh, and I just wanted to say that I was doing the moves correctly and everything while pointing at the screen. I mean, I'm not that stupid...! But it didn't seem to register when I was sitting down.
Random game thought :
Why is Bionic Commando Rearmed 2 getting so much hate? We finally get a real game and they're not even satisfied... I'm starting to hate the gaming community so f****** much...