There's a dupe version of this https://climbing-history.org/climb/7682/biotronic where the FA date is given as 6th June 2016, do we know which is correct?
Looks like Niky logged it as 22nd May on 8a.nu and 6th June on CHB, I'd be inclined to go with the earlier date for the mo, unless someone knows for sure?
22nd of may - confirmed with Stu Kurth via photo dates.