they can take 7 to 10 days my first grow showed sex on day 7
my recent one showed at like day 12 it was really weird but i
think the reason was because i put them in flowering really
young (10days into veg) kinda like what ur doing so u might
expect the same thing

temp spikes is what u want to watch out for (some cabs have
this problem not all) keep the temp around 75 u dont want to go
above 85 at 90 or 95 u are cooking the plant my cab goes from
70 at night to 77 to 82 in the day

what i have seen some people do with hermis is just cut the
sacks off, i dont think there is a way to my a hermi go back to
female in fact i am pretty sure u cant (but if i am wrong
someone will be here quick to point it out)
so if u do get a hermi cut the sacks but we will worry about that
if it happens

the 36 hours of darkness to induce flowering i have heard of it
but i personally have never done that u (if we could get stinky in
here she would tell us for sure)

and u can clone anything its a question of why would u want to
clone a hermi

also the plant u have in the pic i would re pot it deeper in the pot
so it is like half an inch above soil then the first set of leaves
every think below the first node can put out roots if u buried it
above the first node ur plant will rot and more then likly that is
followed by death and wilting, shriviling closer and closer to
the ground till it becomes composed...