FWIW: Not repping the state, just a fan of good bourbon, notice I suggested a water source in Arkansas. Not being a snob, but we were distillers when we migrated here from Scotland (prohibition ended that business, and the great depression made it impossible to bring back). That said I still have many friends in the business, including the Maker's Mark folks.
The issue with water and ice, is if you are paying a premium for something why not get the most out of it. Sorta like you would not put ketchup on a fine steak the way you might a hamburger. Hope this clears things up and it helps make savoring the drink that much better.
SingleTrackMind
I am well familiar with the Woodford Reserve as well (hence the reference to Highbridge water as that spring is not far from that specific distillery) and many of the other producers in the area.