I find ARAI and AGV to fit very simular. My brother runs an ARAI and i run a AGV. Mine is a X-vent Rossi replica.
The AGV is nosier than the ARAI. Id pick the ARAI over the AGV, except i love rossi lids and they are AGV

Also the AGV visors are probably the easiest to change in my opinion.

And yes, you are either a shoei of a arai head. I agree on that 100 percent !!!!!
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