I've been flying jets since 1998, started with ducted fan then in 2000 turbines. In all those years I have never had a gyro in a jet until a couple years back in my bobcat xl. However, the bobcat only has it because it was in there from the guy I bought it from. There were no instructions I could find for the gyro and it made my rudders do weird things on the ground so I unplugged it but never bothered to remove it and now my rudders and nose gear are just straight into the receiver. Everyone with a bobcat xl has told me "you need a gyro for when the main gear come down" yet I don't have one functioning. I have a little crow and that's it. Never had an issue in cross wind or otherwise with any of my jets. I know many people that used them on nose gear steering and that's okay, however, I do personally feel that gyros should NOT be allowed in ANY form of competition where flying is judged. I guess I'm old school where I believe in the person flying the airplane. having said that, I really don't care if somebody wants to use a gyro, but the question at hand is, is it worth adding a gyro? 16 years of flying jets without one says to me that no, it's not worth it.
Of course that is just my opinion.