Vi riporto qui (in inglese) un'ottima (IMO) guida per il setup,
tratta da qui (per chi volesse leggersi tutto il thread):
Tail Setup/Tuning:
1. Dial 3 in middle position and parameter menu item [D] (Heading Lock) to purple
2. I personally start with rudder ATV's at about 105
3. Control behavior to Transmitter mode
4. Rudder expo to 15% (personal choice)
5. Fly and immediately check piro rate and adjust via ATV's if needed. Don't worry about your expo yet. Fly and find maximum tail gyro gain (adjusted in TX) do fast forward and backwards flight if possible. Sliding the tail through a hard bank turn will help if you can't do backwards flight. Adjust right to the point of slight oscillation then back off 3% in the transmitter.
6. With that gyro gain do fast forward flight and piro slowly. Piros should be smooth with no sling-shotting or whipping. If they're not consistent increase parameter [D] and try again.
7. Recheck tail gyro gain then set your expo per personal preference.
8. Finally, adjust the tail stop gain by using Dial 3. Perform fast piros while hovering and quickly release rudder. Observe how the tail stops. If it continues to slide to a stop after you let go then increase Dial 3. If it bounces back then decrease Dial 3. When it gets close listen to the tail blades when you stop. If you can hear them "bark" when the tail stops your just a tad too high on the stop gain.
Head Tuning:
1. Control Behavior in Transmitter mode already
2. Start with ATV's at 100/100 for AIL/ELEV and I usually start about 20% expo. It's really a personal preference though.
3. Both Dial 1 and Dial 2 in middle position.
4. Parameter menu [E] (Stick response) on setting 2. Red flashing LED. Paramter menu [C] (Pitching up Behavior) to "Very Low". Purple LED.
5. Bring heli into a hover for about 5 seconds. Any oscillation in the head then lower Dial 1 in small increments until it's gone.
6. Fly heli and set your Flip/Roll rates via ATV's in the transmitter. Watch for any large bobbles or coasting when letting off the cyclic. If it bobbles reduce Dial 1. If it coasts increase Dial1.
7. Fly in fast forward flight and give moderate sized postive and negative pitch pumps with NO cyclic input. Watch the heli and look for a "dolphin" type movement. If it pitches up and down as you pump the collective increase paramter [C] (Pitching up comensation) one increment at a time until it goes away. You want the lowest setting possible with no negative tendencies.
8. Now comes the part that's a little more difficult to explain. The two main settings left are Dial 1 and Dial 2 and this is where there's really no right or wrong answer per say but a lot more depends on personal feel. Dial 2 (to me) is basically like stick response or that "paddle" feel that many talk about. If you get to the point where the heli just doesn't feel as responsive as you'd like around center stick but you can't reduce your expo any more (or... you've reduced your expo to the point where you're seeing your small corrections that you usually don't see) then increase Dial 2. If you feel like you need more expo but you're starting to surpass 30% then decrease Dial #2. Dial #2 will not affect your flip and roll rates and it is NOT the same thing as expo but to a lesser experienced pilot can feel somwhat similar so don't get them confused or you'll be chasing your tail. Myself, from general flying experience, I know that I'm about a 20%-25% cyclic expo guy. I like a pretty fast flip/roll rate but like to dull it down a tad around center for the precision. So I know that if I get down to around 15% and it still feels a little slow around center then I just go right back to 20% expo and increase Dial 2. Dial 1 is more how "tight" or locked in the cyclic feels. Some people prefer a much more rigid and locked in cyclic so running this gain as high as possible without negative tendencies (elevator bobbles during tic-tocs, etc.) is what you'll want to strive for. If you like a "looser" cyclic (more like a flybar heli) then try decreasing Dial 1. If you get to the point where the heli isn't tracking well and feels slightly unstable in FFF then you're too low.
Tail Precomp Tuning:
1. Activate Collective Precomp with default values and confirm correct Precomp direction (set collective at midstick, apply positive pitch and tail slider should move the same direction as if you gave it right rudder)
2. Set Rate mode gyro gain to the same as your current HH gain.
3. Adjust tail rod for steady tail in a Rate mode hover.
4. Reset tail servo endpoints in Parameter E if mechanical changes were made in step #3.
5. Adjust Collective Precomp value in software to where tail holds steady in a full pitch Rate mode climb-out.
6. Adjust cyclic Precomp to 1/2 the value of your collective Precomp.
7. Back into HH mode and enjoy!
Ciao,
Egidio