I took GMATPrep test1 couple of times and scored ~650 both the times. I did notice that few questions were repeated from the OG; I feel my score was inflated due to this.

I understand the OG questions are retired and never appear in the real GMAT test, but still asking for kinks -- is there any possibility of a repeat in the official test?

I have GMATPrep2 remaining, can the questions on GMPrep2 also contain repeat from GMATPrep1? I was hoping to benchmark my level accurately with GMATPrep2.

Thx