I stripped the bottom half of the plant at day 16 or so and seen no nuts. It was the bottom 3rd of the rest left on the plant that hermed. Thought I was good to go after day 16 and wasnt looking as closely anymore. Checked my garden every day though.
I just got into running cookies crosses and remembered gromer saying on insta to strip the bottom 3rd of cookies plants and then be on herm watch. It's my bad for only doing a quick 1 minute search of each plant after day 16. Wont be running any more fem cookies crosses that's forsure, or at least kitchen sink.
I wanna add that I definitely wasn't "ignoring" my garden , I run a 150gallon notill pot in a tent with multiple strains and the balls that opened were 2ft deep into the canopy which is near impossible to get into without breaking branches. Balls on the edges of the canopy were just forming and none were open. I only had 1 other herm out of the last 200+ fem seeds so I dont have experience looking for them, but I did look every day. Now I know for my next run.