[Unanswered]  Heavier disc? (yes, ik this is a simple question, but idk what it is)

So, I recently opened Random Booster Vol. 6. I was shocked not to get one of the ones I wanted, but instead something semi-useful. A recolor of Inferno Ifrit, containing the disc 2. I was wondering, since I had just started testing combos for it, is the Drain Fafnir disc 8 heavier, or is it Ifrit's disk, 2? (If possible I'd like it down to the decimal. Thanks!)
That I2 is one of the best pulls actually. Hold is useful on L2 and I2 is good for attack. to answer your question 2 is heavier than 8