If 4 guys banged a girl and she got pregnant, would all 4 be the father? Only one sperm wins the race. In the senario you describe, the seeds you get will all be different.
ALL your seeds wouldcarry the genetics of the mother, but in a lot of the plants produced by the seeds those traits would be recessives (IE: not show up in that generation)
To properly breed for the charactoristics of your mother alone, you should take a clone and stress the hell out of it... get it to go hermie, and use THAT pollen on another completely female clone.
The seeds you get would not only be completely identical to the original mother, but would also be feminised.
But try crossing different males with your mother anyway... if you have the room, you MIGHT come up with a whole new definition of DANK!