if i start my babys off in 3g pots, will i need to transplant them by the end of my flowering period?
It depends on how long you are going to veg them, but putting them right into 3 gallon plants is not the best thing to do.
I transplant my plants 3 times.
1st - clones to 16 oz party cup
When we have lots of roots, like almost root bound, I put them in the next larger pot and they explode.
2nd - 16 oz party cup to 1 gallon pot
3rd - 1 gallon pot to 3 gallon pot about a week or so before I plan on flowering.
That's what I do, they are harvested from the 3 gallon pots,