Thanks for the advice. Yea i will just hold up for food until flowering. And i dont want to risk using the 42W right now as my plants are doing good and i dont want to mess anything up. And i will look into topping. How many more weeks should you say i keep it in veg before flowering and how much could i produce, and i will get a lot more cfl's when i flower (the 3500K are easy to find anywhere, the 6500K veg are really hard to find)
i topped my plant at 3 nodes.
As for how long to Veg. there really isnt any given amount of time for it. It really depends on the size of your grow area. I have read on here about a few guys starting flower from seed. When deciding when to flower keep this in mind. your plants will triple in size give or take. it depends on the strain and its flower time. flowering can take anywhere from 6-10 weeks. So you need to look at the size of your grow area, and how much room is under the lights at their full height. subtract the distance you need between the lights and you plants so it doesnt burn, and devide the left over space into thirds. dont forget about your pot either.
i cant tell you how much you will get from your plants. im still on my first grow. and from what ive read that as well depends on the strain you are growing. if you go to
http://www.vancouverseedbank.ca/ and surf the seeds it will show you what height they will grow to, how much you can yeild from that strain, and even flowering times. maybe you can find the strain you are growing and compare.
good luck and sorry for the long waited reply i work monday - friday bud.