I think the double leather looks great on it. I have no want or need for a commando on that boot. The Grant is a bit sleeker than the Barrie and the flat welt and the double leather really compliment it. If you really want a commando I would suggest buying the 4060 from TSM and just having it resoled with a commando when the time comes.
With that said, I wear my boots like boots regardless of the sole. I am somewhat in the minority here. I was just out in the rain in my 4060s last night. I wear them in the snow too!
Good luck with your decision. Most people go TTS on the Grant so if you went 1/2 down on the Barrie to 10, then I'd go 10.5 on the Grant.
I want the Commando because I drive two wheels exclusively. Leather soles on oily asphalt..... well maybe I should call it assphalt. Anyway, You've given me enough information to pull out my credit card. Thank you.!