Ski Boot Flex 120 or 130

I recently bought a Atomic Hawx Prime XTD 120 and 130. I am struggling to decide which flex to keep. I am 180 lbs and 6 feet. I have skied my whole life but spent the last ten years only skiing back country. I am an aggressive skiier but not the most aggressive person on the mountain, I go fast but don't huck big cliffs. I can flex both boots inside on one leg and two legs but can flex the 120 more, obviously. Any advice or tips would be appreciated. Thanks!

Difficult to say. My concern would be 'booting out' which i feel big wide skis might do.
Im on 120 flex with a 112 waist and i like the boot coping far better than a Garmont which by comparison was a slipper, which is not good for me.

In reality, i think both flexes will work downhill, depends what else you are asking it to do.

I'd keep the comfiest ones!