I've noticed alot of experienced growers on here just buy reg seeds, grow em, pick their pheno's and clone or breed from there. Read alot of negative reviews on fem seeds. Just parroting.
Theres nothing wrong with feminized seeds. the only issue which can be also said of regular seeds is the quality of the strain/genetics. the only real difference that is unique to feminized seeds is the method of producing such feminized seeds.
if the genetics are crap to begin with and the "feminized" seeds come from a hermie of a regular then you're gonna get crap offspring.
if the genetics are A+ (ie. lots of plants are grown and a "perfect" (to the breeder's/grower's standards) female plant is selected and sprayed with CS (colloidal silver) to produce the feminized beans then you're gonna get high quality offspring.
a simple way to do it and be guaranteed winners is to spray an ideal female and allow her to pollinate herself (you have to eliminate all the other plants or move her far far far away or in a custom made box that allows air in but not the pollen from others!) and you'll be left with S1 seeds. S1 seeds are an exact genetic copy of the female. therefore all the offspring should be almost clone like in height, appearance, etc as its simply one plant crossed with itself.
some breeders that sell feminized seed may be using either crap/unstable genetics or not getting created feminized seed by the appropriate method. for example: some breeders will stress a plant till it goes hermie. if u stress a plant and it goes hermie you dont want it for breeding!
so its not that the feminized seed itself is the problem. its more human error than anything.
ive grown nothing but feminized seeds for 5 years and sure ive had some genetics that sucked but ive also had some of the greatest buds ive ever smoked. so imo its all on the breeder. feminized breeders like Dinafem are top notch from my personal experience (never got a "loser" from them ever) but other breeders are a bit more questionable (GHS...i grew maybe 5-6 strains from them but only one was a winner)