can anyone help me with the following questions regarding backgames please?

1.)  Anybody know which are the 2 points to be made in your opponents home which
statistically provide the maximum hit opportunities?

(I previously thought it was the 1 and 2 points but Im not so sure now.)

2.)  Does the answer to (1.)depend on the opponents experience/ability?

f.i. A novice would more than likely attempt to move his/her pieces in a.s.a.p,
whereas an experienced player might attempt to prime it in order to create
"crunching".

3.)  Does the cube have an effect on the points used?

(ie if doubled, higher points to avoid gammon)

4.)  Are there any top draw players who activily seek from outset to play a
backgame?

Ive only recently become aware of the power of such a tactic, and would like to
learn more about it..

Thank you in advance for your reply(s)