That's very interesting. I only want to grow 2 autoflowering plants a year for personal use.
My first ever effort at the beginning of Oct in final 14 litre pots was underwhelming to say the least. It's almost 28 days now and they're only about 5 inches tall with 3 sets of leaves and a very thin stem. I germinated them in a sunny windowsill and they got very leggy as a result. I doubt that they'll do well.
Second time round starting at the end of Oct I tried something different and germinated two autos in jiffy pellets in their final 10 litre pots, and bought a t5 light (2x55w) to help things along. I don't have a grow tent so the lights are rigged up in a rather inventive way over the pots, about 6 inches above them.
It's now 5 days since germination and both plants are small with tiny cotyledons and miniscule first sets of leaves appearing. I thought autos would be easy for a beginner like myself. So third time round, I'm gonna go for a 3 litre pot and sow the seed direct into it. My aim is to keep under t5 for a week or so and then put them outdoors. I'm in Australia, so the sun is plenty hot enough. Thanks for the tip!