I have the Trex450x and am having a little issue with the tail control.

It's not a huge issue, but when I have the Gyro in HH is seems to over-correct when stopping any movement. Let me explain a little better. Just hovering it seems to hold pretty good, but if I turn either way, as soon as I let off the control, it moves the other way a few inches then back to stable. I can even make it do this without the main blades spinning. So I move the stick a little and can see the pitch change, but when I release it move a little the other way before centering.

Is this right? Is there a way to minimize this correction?

I'm using the Gy401 and have it set at HH 50% right now. I'm using a Hitec 50 server on the tail. I have playing with the delay and the gyro gain to try and fix this, but I can't seem to effect it that much.

Just in case you need to know.
Futaba 7CHP
Electron 6 Receiver
Mega 16/15/3
CC35 ESC
Hitec 56hb main servos
Hitec 50 tail servo
Ball link upgrade on servo links

I had a wreck recently (I won't get into flying at night and losing it in the dark and crash landing from about 30' on pavement), but I've completely rebuilt the tail, and main shaft. Everything is ballanced and trimmed.

The Trex still flies great, but this is just a little annoying.

Let me know if this is normal and/or a stupid question.

Also, can someone explain tail hunting? I just want to make sure I understand the terminology since I'm fairly new to Helis.

Thanks.