I was just wonderin, if I get a Graupner Mini Piper and instead of getting the regular radio, if I should upgrade to the Hitec Laser 4 Channel FM with 2 HS-300, or the Hitec Laser 4 FM, Feather Receiver, 2 HS-55? I am new to this, so give me some time! And one other question for now, why do some controllers have two Sticks, and others only have one?

2 sticks generally = 4 channel radio
1 stick =2 channel radio
hope this helps

You want at LEAST a 4 ch radio