In fairness to Formula Shell, we're comparing what might have been a bit of a ringer in the PYB and even the QSGB to which it was compared. The latter two showed a lot "better" than their own data sheets indicate, particularly with Noack, and therefore there's no guarantee as to what we'll see down the road. Now, do we see such things happen with Formula Shell on occasion, or do they offer more stability? I have seen PQIA testing before that would show the three products to be identical, within the error bars, of course, giving a lot of credit to a VOA which it really cannot do, and, assuming I didn't believe Shell when they say they are different products, and I do believe them.