I'm going to chime in with a suggestion re: LST. So I just tried LST for the first time with 3 plants over the past few months and I did it the exact same way you did where I anchored the main stem down to the side of the plant and then kept doing that as it got taller and taller. This worked, but over time it became a bit of a mess and now that I started a couple auto's these past few weeks I decided I needed to try and do it 'properly'. I'm still learning, but one thing I realized I did wrong is that I didn't add a counter anchor on the main stem which resulted in the plant just going like this:
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instead of turning at a 90 degree angle like this:
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Anyhow, good luck & happy growing
(see attached picture for example)