tricky question for growers with experience

hey, guys,
I was just wanted to share some info, and to see what do u think about it.
so I kept my female northern light clones under 2700K for couple of weeks, before I changed from 18/6 to 12/12... and as u know, usually it takes like 2 weeks to find out plants sex, when u switch to 12/12. in 20 days into flowering my plants had nice small budz already.
so my question would be:
do u think much faster budding was triggered cuz of young age of my plants (they were 1 month old when I flowering cycle started) or keeping plants under orange spectrum lights in vegetation stage before flowering did it's job?
northern light in the picture is 20 days old....


my NL grow: http://boards.cannabis.com/showthread.php?t=82324

it is probably due to the strain and the fact they are clones which should make them as old as the plant they was cut from.