[Racefan]

Keeping your light close is what will keep your internodes tight. That and your enviroment (temps). By going directly to a large container you will slow top growth and end up with a root bound plant faster than if you worked up to 5 gal. containers over a couple of transplants. Nothing worse than watching a plant yellow and wither at 5 weeks into 12/12 because they are overly root bound and while I've done it, it's a pain in the ass to transplant a 6 foot tall plant from a 5 gallon pail into a bigger container just to finish a grow.