# 1 Did you plug in the servos yourself, or was it plugged in at the factory?

# 2 Loose belt, or loose tail pinion(s)?

#3 Normal

#4 I assume you mean "tail fin", Not really needed for the flying you'll be doing for now... Hovering.

About #4... Did it break because of a main blade strike?? Your feathering and main shaft have a great possibility of being bent right now.

You should post a vid or pic of the problems.