Not to sound unreasonable, but is it all-together possible that even though ruderalis genes are relatively pre-determined, that stress w/ proper recovery could actually extend the life mildly to accommodate for the bounce-back?? I feel that is definitely a possibility with the stronger genetics that some of the breeders produce.. Gotta remember, a lot of these plants have photo-genetics, so there is a feasibility that the better genetics could actually respond similar to photos, but have the duration like autos??
I totally agree w/ the pheno differences being a prevailing factor, but honestly, how many generations have a lot of the breeders developed to get the ideal traits?? I figure guys like Mephisto, DP and Dinafem are F3-F5 in some cases to preserve things like purple color, extreme growth and vigor, so when we get them, they appear to have almost identical structure and growth patterns and the rest comes down to lighting and nutrient availability..
There are so many factors that it'd be extremely difficult to prove or disprove the fate of a topped auto, unless you yourself bred out a few generations and were able to isolate the dominant features.. Regardless, there are a TON of guys here who use a number of different approaches and still achieve 1lbs+ plants that make me feel awfully inadequate as a grower and begin to question my own gender.... lol j/k