Thanks for stopping by! I barely vegged at all, did a failed fim (as they often are) after 3 nodes, then flipped as soon as it seemed recovered from that.
The main way I keep it so low is a scrog/LST method I usually use, where I use twine to constantly tie down any branches or tops that get more than a few inches above the screen. Because CFLs are pretty useless more than a few inches from a leaf, this allows me to keep as flat a canopy as possible to maximize what CFLs can provide. I doubt this method would be very beneficial if you're using HID lights, which can penetrate a lot deeper in an uneven canopy.
This has worked very well for me with sativas in the past, though this ElDorado didn't keep up its growth rate in flowering as much as super silver haze did (my last grow on this setup) and African sativas usually do (a couple previous grows). This has resulted in me filling a lot less of the screen than I'd hoped. So I'd recommend a little more vegging than I did, at least if you want a plant about the size I was aiming for.