Gyro Position

The gyro manual states that the placement of the gyro is not very important, as long as "the axis to be stabilised runs vertically through the gyro" (I interpreted "running through" as "being parallel to", otherwise the placement becomes near impossible). But it is important to place it at a vibration-free position. Therefore I placed it in the front compartiment, just behind the receiver.
I was advised to keep a minimum distance of a few inches (>5cm) between the gyro and the receiver. The idea was that piezo gyros might cause radio interference. However, I checked this with my gyro and I could not find interference, even if I stick the gyro to the back of the receiver and have my transmitter at a large distance so that I can notice the average noise level go up. Only when the gyro is flat against the receiver antenna some extra noise seemed to be introduced. Recently I found the newsgroup thread that probably introduced this idea (here is a copy of the latest news on it). As you can see, Brad has changed his mind about the cause of the interference.
Actually, the new eagle from Hirobo has a setup where gyro and receiver are very close to each other.
I have flown far enough to be completely confident with the position - no signs of noise (using PPM, not PCM). I am now running the gyro at 70% gain heading hold (that is, 50 + 70/2 = 85% on the transmitter gyro setting) with good results.