x2 Rep Drop + Hunters Luck EXP?

I was told that any x2 drop entitlement wouldn't work alongside the new EXP cards and I was wondering if I could get a confirmation on this or a correct answer. I feel really disheartened if this is the case as I wanted to go to O3 and grind with a little x2 drop... and get a piece if I was lucky. D:

If this has been answered somewhere I apologize.