Monks and Improved Natural Attack

[Nail]

To me, the following possible question seems even more biased (even though it might more directly meet the intent of the poll):
"Using only the core rules, is there room for interpretation on the monk/INA issue?
- Yes
- No"

Does the noun "core rules" include errata? FAQ? RotG articles? Customer Service emails? Etc.

Better:

"Using only the PH, DMG, MM, and the errata for those books (but not the FAQ, Sage, RotG, etc.), are there at least 2 defensible interpretations of the monk/INA issue?"