For some reason me being dull week 2 have been put...

Depends what you mean by scrogging. Scrogging and any form of LST a great idea for almost all non-purple non-black strains (the autos of such gens just react badly to lst as a rule) in terms of yield and convenience. So if you're scrogging for yield though, you need to start around week 2/3 of the autos lifecycle. If you're scrogging just to keep the colas supported then you're good to go, never too late or too early to start supporting your colas bro. hope this helps ! 🚀

Can definetly scrog an auto but with the inability to choose veg length can make it hard to fully fill out the trellis in time. I find something like a low stress training where I tie branches to the side and down about as effective if not more and easier. Allows for more light penetration.

A scrog will work but for autos but i find it easier to pin branches down with stakes to control shape of your plant and allow light to get to all bud sites