Many thanks all.
Will continue to flush plant 2, hopefully has enough in it to get to the end, lighter feed to P1. Also ordered some GHE Ripen so will have that to fall back on. The light was 10” but lifted 1” a week ago as max I could go due the height constraints, but from your comments have modified my drain stand (not sure neighbours happy about the drilling at 6am😳) so they now sitting at 14” so happy days. Like said, hopefully they will now Ripen in peaceful 👍 Learning all the way so cheers all 😎