Feminized seeds are great but show me a feminized mother that's 7/8 year old like some of my reg mothers ,let me put that a other way I let my plant get up to a height where I need to re clone and re veg mother,but that plant is still 7/8 year old.feminized seeds are a one hit grow for me ,I feel no need to keep a mother of a plant that the seeds are all ways available in feminized form,Once you start growing regular grown plants then you will know what I mean.they are far more hardy but you have to take time to select a pheno with traits that suit your needs ,be it taste smell,structure,that's up to you ,then just clone this has long has you want,in the end you will turn to males and start crossing your own plants,this sometimes takes years to get right but I have been lucky a few time with just straight crosses like my livers v cheese,Bazil kush.Has long has you stick to good breeders than the odds of getting seeds that will ruin your crops will be far less,your right feminized seeds have come a long way,from when I first started,there was no internet well there was but none of us thought it would catch on lol how wrong was we,my first grow was a thia weed grow when I was 15 ,seeds from bud I was buying in bulk,back then you got 9 oz perhaps 5 oz of that was bud rest seed,That is why I still to this day love hash ,hash is the way to go,for me but I each to there own.super cropping in my view will stress a plant,you can see this if you grow hydroponics because straight after the cropping ,the plant slows down feeding ,but will pick back up.
Good luck with what ever you grow
Jha bless
Tyke