I liked this quite a bit, the bourbon and ginger are a natural combination. I found it a bit tart as written though, I might pull back on the lemon juice a bit next time.
Made with Evan Williams 2013 bourbon, King's Ginger, 2:1 gomme syrup, and Bitter Truth aromatic bitters. The tart and sweet are well balanced, but I wish the ginger would come through more. Next time I might swap the syrup for more ginger, or muddle a slice of ginger root.
Substituted Buffalo Trace Bourbon, 1/3 oz 2:1 Simple Syrup. Tried it with both 1 oz Lemon Juice and 3/4 oz Lemon Juice; definitely recommend reducing the Lemon Juice to 3/4 oz. Solid, but too much of an ordinary sour with 1 oz with the Lemon Juice overly asserting itself. Reducing the Lemon Juice allowed a lot more of the nuance of the Bourbon and spices to come through.