hi i just bought a 4-band controller yesterday and i'm not very pleased with it. it seems that the reception is just as bad, if not worst than the default controller.....i also thought that it was supposed to come with a telescopic antenna.....i've recently taken out the cripple capacitor on the car itself (my controller didnt have one) and it seems like its worst than i first got it.....is there anyway to resolve this/these problems? and is it worth it to go to radio shack to buy a telescopic antenna and if it is how much distance do i gain from it? and which one do i get? last thing i'd like to mention is that the car seems to stutter when i'm trying to turn most of the time and seems to have no response at the least expected position (the "easy" positions)...thank you...