Probably need to take it earlier...I went for #16 and it seemed ok?
Actually took 2. Took the first probably a little too late. Didn't have a watch so no idea how long I had been out. Took the 2nd purely because it was just extra weight at about 30. Sometimes they make a massive difference, this time I didn't notice any effect.
I used my detective skills. Heard on the commentary that Shminty had taken 40ish mins to get to first radio so just waited until I got to a wonky looking control.