Offset Bushing

[P911sjp]

I understand the process of these bushes where an offset is actually in the bush.
What Im having trouble with in my mind is how do you know where the offset hole within the bush sits on the 360 degree rotation of a bush once in the cradle.

I am about to do the Control arm bushes on a Gen Two mini I have purchased two types of bushes one has come as an offset one other is a standard, different make.
The offset ones are Superflex the standard are Powerflex.

Feel the Powerflex with no metal outer will be easier to wind in but not sure of the offset how do you know where the offset hole goes and once its in the cradle its not going to move is it hence altering the suspension inclination.??

Doing my head in , any helpers please.

steve