Ibechillin
Masochist Educator
Ive been trying to spread this around, perfect for this thread.
As someone with a biological science background and 35+ years growing experience I think I can add further to the discussion.
I have been cloning multiple strains for over 25 years and have regularly taken clones from plants well into flowering. I have also maintained a Jack Herer cut since the early 2000's. In my experience I have never had any phenotypic change in my cuttings despite not keeping a mother plant and always starting with new cuttings each grow cycle.
The so called monster cropping response is simply because when a plant is in flower the internode length is extremely short (within the bud) and so there is many nodes available to re-sprout when the clone reverts back to a vegetative state. Taking cuttings off this plant (once it is fully back to the vegetative state) will not carry this morphology across - the cuttings are invariably identical to the original mother prior to flowering. There has been anecdotal reports over the years of cutting lines changing over time - losing vigour, potency etc. but there has never been any concrete evidence of this happening and I certainly haven't observed it.