This directly contradicts statements to lambic.info staff from Stene, the owner of Akkurat. Stene that it was a unique blend made for their bar.
Additionally, this now leads to confusion about the blend. 50/50 is reportedly 3 three year old Boon and 1 one year old Lindemans. However, yet J&J Rose is 3 three year old Girardin with one year old Boon).
Further validation is required.