That is exactly it. I know that growing in soil, I grow a little slower than those that use synthetic nutes and I am perfectly good with that. To counter that, I just need to veg a little longer. Also....8 weeks veg fits perfect into my plant limit in conjunction with a perpetual grow. I can only have 12 plants. I figure an average of 10 weeks to flower per plant. I want to harvest roughly every two weeks. That means I will generally have 4 or 5 plants in various stages of flower and 4 or 5 plants in various stage of veg.
This leaves me 2-3 openings for clones or males when I find something I want to play around with. Think of an assembly line of plants. Every two weeks, a new bean gets dropped. About that time a plant in flower should be getting chopped. That also signals me to pull the most mature plant from veg to take over the spot that was being held down by the plant that got chopped. 8 weeks of veg works perfect for that schedule and plant limit.
Now like a fight, everyone has a plan until they get hit in the face. I realize my plants can punch back and might not want to stick to my schedule. There will be strains that are supposed to be ready in 9 weeks that will probably end up taking 11 or even 12 weeks. There might be the occasional strain that is supposed to take 8 weeks and it might only take 7. This is a tentative plan and schedule and we are fully prepared to have monkey wrenches thrown in our plans.
We already learned we have to space out strains that we are growing from regular seeds (we drop 2 beans when regulars). The two Stankberry and two Harlequins back to back kind of overcrowded the early part of the grow.....but I also realized there was a chance we might have one or two males in them so I took the chance. So needing to drop 2 beans has made us switch around a few upcoming strains to throw a couple feminized seeds in the mix.