I also have a Jeti as well as a DX 18. I always set up my gyro right out the box. I eliminate the heading hold bank and use the three position switch on the top left hand of my radio which on the Jeti I changed that switch to a 3 position one. I always start with a gain of about 70 to 80% for take off and landings and then about 30% but this depends on the jet for normal cruise and high speeds. Finally with the switch in the down position I'm able to turn the gyro off which Danny from Cortx says I do t need but I like to be able to turn it off just give me a good feeling in case it asks up on the first few flights.

Also so I always trim my jets with the gyro off so when the gyro is on it's not fighting itself. I don't trust a nob because you really don't know how much gain you are really using until after you land and check and since I use different gains for take off, landing and high speed/cruise I like to know exactly what number or percentage I'm using and adjust from there.