Spectra G 401 gyro issue

[RTG]

I am having an issued with 401 and this heli ,The gyro does not
want to hold tail at all, no matter what I do . I don't know what's with that,
this heli has been driving me nuts eversince I got it has been nothing but
problems after problems. :arggg:

[Christopher J]

Which servo are you using and what headspeed are you running?

[RTG]

I am running 401-9253 combo, with 1740 Head speed

[WillJames]

What length tail blades are you running and how good are you at tuning your motor? What is your gyro sensativity set at?