Ok, to cut a long story short, I have had a backwards drift on my heli which has come and gone, lately it has been coming more than going, so I have just ordered an AR7200BX and am going to do a comparison. I am just a little tired of tweaking the 3GX all the time and checking my setup over and over. I don't know if there is a problem with my 3GX or my setup but if it's my set-up well then I can't find what is wrong with it so I'm just going to see if the beastx solves the problem and if it does I'll sell my 3GX on ebay. if it doesn't solve the problem then I will be very surprised and bite a piece of humble pie- send the heli to a ro to get it sorted once and for all. stay tuned, and watch this space.