WhistlePig PiggyBack Bourbon 6 Year Old Revealed

Update: WhistlePig PiggyBack Bourbon Launches August 2022!
Labels submitted to the TTB have revealed WhistlePig PiggyBack Bourbon, a blend of straight bourbon whiskeys aged for 6 years and bottled at 96.56 proof (48.28% ABV).
The back label indicates WhistlePig PiggyBack Bourbon is a single grain, small batch blend of Vermont, Kentucky, and Indiana straight bourbon whiskeys distilled from dent corn and matured in #3 char new American oak barrels.
Expect an official announcement with more information, including pricing, release date, and availability, prior to launch.
Source: ttbonline.gov.