Can you veg too long?

[canadagrown]

I assume, you meant 10 weeks? I veg for 4 weeks only. Half my seeds usually show their sex after 28 days of vegging...so I transplant to 3 gallon pots and kick it to 12/12...:thumbsup:
vegging longer...don't hurt anything...or help anything, either...IMO...unless you have a poorly developed root system

I thought a plant had to be put under 12/12 before they will show their sex. Am I wrong then?