Today I notice one plant started stretching again. (Well I think stretching would be the proper term.) The strain is Recon and is about 7.5 weeks into flower. It is already very noticeably taller than the rest of the room and other strains. What I'm referring to in the pictures is where you can see a long stem with another small bud coming out the larger bud. I plan on harvesting at the end of the 8 weeks plus a 3 day flush, so roughly around 60 days. If this is normal should I maybe extend the flower period to let everything fully bloom? Or should I be concerned?