The Blade CX2 is notoriously poor in outdoor flight environments. This does not come as a result of a design flaw, but rather, a design point: the heli must be small enough to fly inside. But for those of us who have mastered indoor flight, outdoor flight provides a new level of fun for pilots. Some simple (and sometimes free) modifications may be neccessary in order to provide a much more fun outdoor experience.

Please note that even if you apply these mods, your CX2 will not perform as well outside as a single-rotor model (Coyote64). Find an instructor or a simulator if you feel the need to move up, or you can fly out of the box if you feel comfortable doing so.
<ul>[*]Buy a tailboom kit. Any one will do, really. This is because the stock tail has a much larger area for wind to push against, but is extremely light, making it easier for the helicopter to be blown away. A boom has a greatly reduced surface area, while maintaning gross weight and proper balance. (~USD 20.00 for a M3 Boom Kit)
[Soloboss] has mentioned that the boom kits can cause weathervaning (your heli will spin left/right in a crosswind). You might be able to counteract this by replacing parts of the canopy with an aluminum mesh, which, according to [wildpig], whose heli I saw this on, is available from crafts stores.[*]Move the swashplate link arms out a hole (or two) on the servo arms. Start with the pitch (forward/backward roll) servo, then, if you use it a lot, move the link arm on the roll(left/right roll) servo. You will need to (carefully) widen the holes on the servo arms.This will give you the control authority to fight wind and will allow you to use the wide open spaces you now have. Do not move the link arm past the third hole, or apply stick movements too harshly, as this will cause blade clack. (FREE)[*]Lighten the flybar. Do this after you have become accustomed to flight with the servo arm moved. This will not only give you greater control authority, it will reduce blade clack occurences and will lengthen the amount of time before the mechanical gyroscopic effect takes over and counteracts your control movement, giving you a smoother flight. Start by removing the weights from the flybar, then, once you feel comfortable doing so, the rubber caps. You will have to adjust the mixer trimmer pot, as the upper blade will spin faster. There are also prefab lightened flybars available (FREE)[*]Buy a set of flex, aluminum, or carbon fiber tube skids. If you have to do a hard landing because of strikes against obstacles, loss of control, or clack, you will likely fall from a much greater height, and the stock skids break like brittle twigs. (~USD 7.00 for a pair of flex skids)[*]Buy the Xtreme motor set and silver brushes. <span style="color: rgb(255, 0, 0);">WARNING:</span> Installing the silver brushes requires soldering skill. (~USD 13.00 per motor - be sure to buy one of each type - and USD 2.70 for a pair of silver brushes.) soloboss[*]Buy an upgraded battery pack, for increased flight times and power. (~USD 17.00) soloboss[/list]GOSLOWLY! Only apply the control mods one at a time, otherwise you'll be overwhelmed by the sudden increase in control response. Please post your own suggestions and I will add them to the original post (with your name attached, of course). Tell me if I've got anything wrong.