Hi dragon no fly,
This is going to hurt on a Walkera 4 thread but if you are thinking of going for a TRex then I would now put all your money aside to buy one. Once set up correctly (which is a bit harder than the Walkera) the TRex is so much easyier to fly. It is very stable and wind is no longer an issue when you go flying. It does cost a little more to start with but there are shops online that will sell you a basic package to get you going and you can then upgrade from there (although the TRex is perfectly good standard).
There is a good website to check out if you are thinking of getting a TRex. Its called [link=http://www.trextuning.com]trextuning[/link] and even takes you through the entire build and set-up process.
My Trex is getting upgraded. I have ordered a full CNC head/components. This is not esential but what the heck !!!!
So in short, if you want a TRex keep you Walkera for indoors and leave it pretty much standard. The Rex is as good a heli as you will need for outside.
Jon
A couple of pics of my TRex as it is now.......pre 'bling'.
