I just tamed stuff to try find good pets. Was taming greater dragons for people with her, too. Tamed lots of cu sidhe and a few unicorns a day. Did that until about 115 (I know a lot of that was probably GGS. I was busy with RL during those months and didn't really bother actually working her much). Then I tried to go out taming unicorns like I did with my first tamer (way back when). I didn't get anything outside of the GGS after hours of taming for several days. I think something may be broke right now with taming at high levels.
So, unfortunately, I did have to finally resort to stripping her of all skills, but the taming, and going out after unicorn every 11-14 hours for GGS. I was pretty fed up at that point.
So no secret. Just irritated with not getting real gains like I should have.
I did find out, if you mount a pet you have tamed, then dismount it in a few, It will be on the follow command. I'm not sure when they put that in. I only figured it out cause I couldn't command the unicorns after taming and would ride them to my house so I could release them off the server.