Ways to increase bud sites

First weeks of flowering is too late to boost the number of bud sites, these things are the result of careful pruning techniques during (early) veg. No additives or "sprays" can perform miracles. Bud "enhancers" include fulvic acid, humic acid and amino acids. Kelp extracts help too.

To boost bud site you should Cut the top head off your plants 2 weeks before flowering, As for Additive go for ( Advanced Nutrients Bud Ignitor ) . Will help force and increase bud site in the first 2 weeks of flowering 💪

Lollipop 🍭

there's no magic product that cuases what you seek. more light causes tighter node spacing.. but this would be the results of your vege and early flower efforts. having them slightly tighter with an autoflower wouldn't really accomplish much, though. this might result in more of the colas fusing together as they ripen. that doesn't really improve yield but does increase risk of infection. this assumes they are a 'good' internode length, otherwise. 35-40 DLI and well-fed etc.. whether the plant grows donks, medium buds or little golf balls is mostly genetics. feeding is more about simply not stepping on our own feet vs any major effect on buds. hydro will be bigger than soil relative to same time invested, etc.. some small deviations and such. but aplant that is not a big yielder cannot be converted to one with any product you can buy. buds come out of growth nodes. you can't manifest more nodes than what developed prior.

It's lst actually earlier on in vegging that makes the plants more bushy. I have grow in coco for years. I did a Larry lemon auto diary where I did a daily picture after lst each day. Feel free to check it out.