18 days of flower... Nothing happening!

Hi guys, just thought I'd let you know that 2 out of the 5 plants have started to flower today and have nice popcorn sized buds on the top colas. Amazing. Day 22 of flower. Hopefully the other 3 will turn in the next few days too. Thanks for all your help

Just in case you wanted a comparison, I'm growing a Pineapple Chunk at the moment and it started to preflower after 3 days of 12/12. I veged for 5 weeks from the seedling breaking the surface.

they probaby where not mature.

Yeah, they're huge and I thought they were... Obviously not