The number one way, and pretty much the only way, to reduce wobble is by generating more spin on the disc.
If you can flick your wrist right at the end of your throw and get the disc spinning, it will glide. Think of your arm, from shoulder to fingertips, as a whip. When you throw, you want your arm to pretty much whip the disc out of your hand so that you get it spinning fast right out of your hand.
I'm still working on reducing the wobble on my forehand anhyzers, but I know it's almost all in the wrist.
One more thing you can try is to throw a lower-speed disc. Something like an Innova Destroyer (12-speed) is going to take much more power to throw without wobbling than something like a Leopard 3 (7-speed) will.
Great post. It's really cool to come back to Hive after a while and see people talking about Disc Golf. I started playing last Spring and just got absolutely hooked!