Yeah it will still work. Just leave the lamp switch on and the timer will take care of everything:hump:. They are relativity cheap too. I got a digital one at my local hardware store for 20 bucks.
You have to look under the top of the plant right under the first node. You will find white little hairs. The middle of the plant wont show its sex for at least the 2-3 week of flowering.
30" is still pretty high you can go to 18-20". If you see any damage happen raise the light. Im sure that will help them. Also i would suggest a 24 hour light cycle. Looks good though keep it up :hump:.
Yeah. I used my little key chain led light on my girl during the dark and the bitch turned Hermie on me. You want absolutely no light during dark period.