From an uneducated guesstimate I would venture that there are a lot of variables to take into consideration?
To begin, your bag seeds came from a stash that did the job and got you high, hence your hopes to replicate...
The first variable is the original bag:
Yes it was good smoke, but how did the seeds come about in the first place?
If outdoor, was there a male nearby and an errant wind?
If indoors, was there a male somewhere in the room with the virgins?
Was there a Hermi somewhere in the room with the virgins?
Did the seeds come a virgin turned Hermi?
Second thought that comes to mind:
If one were to find seeds in a bag, then I would venture a guess that if healthy, it would contain any possible combination of dominant and recessive genes, plus variable pheno types of the mother/father/hermi combo.
Third, all variables aside, and with hopes high, I offer this guess:
The original female was accidentally tainted by a one in a million shot male encounter. The rest of the tree grew female, your branch had perfectly healthy, 50/50 non-feminized seeds. If the original smoked well enough for you, you should be able to pop these beans, control your environment a sight better (to avoid any run ins with males) and grow beautiful, healthy, and very potent ladies.
Of course if the genetics are "eh", will the resulting beans be "eh" as well?
Fuck it, here's hoping your bag seeds are the next Chem#4!! =)