Weapon Size Charts? Improved Natural Attack Size Charts?

[nthrun5000]

I'm making this thread in hopes that we can get an official ruling on weapon size damage. Dozens of threads have pointed out the inconsistency between the Bestiary's natural attack by size chart and the Improved Natural Attack feat. No chart for weapons for huge and bigger creatures exists in general. Here are the two charts for natural attacks.

Universal Monster Rules Natural Attack Chart
1>1d2>1d3>1d4>1d6>1d8>2d6>2d8>4d6

Improved Natural Attack Feat
d2, 1d3, 1d4, 1d6, 1d8, 2d6, 3d6, 4d6, 6d6, 8d6, 12d6.
And
1d10, 2d8, 3d8, 4d8, 6d8, 8d8, 12d8.

Now the inconsistencies are from 2d6 to either 2d8 or 3d6. And then 2d8 either increases 4d6 or 3d8.

Before anyone says "Use both, depending on where the damage step comes from", there is a problem with order of operations, which increases to apply first. Example: Form of the Dragon III gives a 2d8 bite. If I've got Improved Natural Attack, but also the Impact weapon quality, the bite either deals 6d6 or 4d8 depending on the order of application.

Solution? Make a single chart to handle all weapon damage increases, put it in the Errata. Alternatively, indicate an order of operations, which would make things clear but more convoluted.