the twin axial helis (two sets of blades above each other that sping in opposite directions) are a gazillion time easier to fly because you don't have to worry about tail control but they have very limited in their flying capabilities. If you fly tail rotor helis you'll have to fimiliarise yourself with two types: fixed and collective pitch. Collective pitch gives you the best control and stability but are harder to setup and more expensive to maintain. I have a T-Rex 450 Electric. It's a collective pitch model. Assuming you fly in Mode1 (most Aussie radios are set up this way) you'll need to learn to use one hand for pitch and the other hand for roll. it will take you a while to get used to it. no amount of explaination will teach you to fly, you'll have to learn by trying it. but i must warn you, it gets expensive. I have not yet had a flying day where something wasn't damaged or broken. I have changed many landing skids, main blades, tail blades, and tail booms.