perhaps. but then you had better adjust your flowering time by adding 2 weeks.
i consider the time between the time switch and the first pistils 'transition time'.
the time where the plant is undegoing a hormonal change.
Awesome, Thanks for Clarifying bro; I have a vegetating female 18/6 for 3 months now, and I saw preflowers a month or so ago. Nobody can possibly say that she is flowering just b/c her preflowers are showing.