I have had this heli for a couple months and I am pretty sure the issue has been there the whole time I have owned it. It is just now that I want to get further away and thus is a bigger issue.....since I have changed chan's I have changed the crystal in the rx and the tx.....so the crystal is installed correctly....I have also had to replace the main frame and when I did that I tried to re-route some servo wires and stuff to get it even more out of the way, yet still no improvment :-(....I am wondering again if maybe it is local interferance, some non FCC regulated device giving off a broad range of crap around 72mhz. I will try to take the heli to a park tommarow instead of infront of my house....see if it does a bit better there.