Battle of the Sister Barrels - Comparing Two Single Barrels

I managed to get my hands on two bottles of Knob Creek from barrels that sat beside each other from distillation to bottling. I'm also tasting two bottles of Elijah Craig that are roughly the same age, but one from a barrel that yielded only half as much bourbon as the other. Do these things make a difference? Find out tonight! #RyeWhiskey