the answer to your questions realy depend on what engine and trans combination you begin with !
Some are much much tougher than others and some are so easy to get along with that its not even a challenge!
If you are purchasing a unit make sure it is not one of the tuff ones first !
The engine makes more of a difference then the transmission in this respect ,
Engines that decelerate at a slower rate at trailing throttle are the best to learn on !