Wowzer! that sure is too late to top! Also fantastic work! It's fun to watch you grow.
Its liking the new light without a doubt.
I had some good spring water from PA I brought home from camping..
It was delicious and the plants absolutely loved it. Super cold in the hottest of summer and tasted like it was from the Gods
I dont mean to sound religious LOL
But the plants grew very well indeed long story short about spring water.
I knew a guy that only grew with Fiji bottled water... Talk about a bill. It does have the highest content of fecal matter for all bottled waters. So it definitely works good for gardening but it is so pricey. I find it is the best water to sprout my seeds thus far except a couple landraces from India have had bad luck with a few methods on unfortunately.
I find the earlier the better to be topping auto you kind of want them to be of decent size but not into flower this far I have made some mistakes and lost some good autos to my elf bending too hard they are especially fragile to that and disrupts the whole flowering system to the plant like a transplant if it has buds like yours does now and its in a small container you better keep watering it and nurturing it in the same small container lol I tried transplanting autos this far they give up almost completely and produce rather sad yield so they have a bad rep since ppl wanna do too much to them and we didn't know they require less food then our beloved photo's
Handle differently under conditions photos can tolerate stress too like transplant and back to the food.. That rant over we all know how autos are now lol
Your 40x if its the telescoping type that you adjust to focus. Those are good but the ol' faithful jewelers loupe is what I like best when you can sit back your eye judt a few inches like your looking into a scope ona rifle. Then pull the loupe away from the piece or object you are looking at. I enjoy using the one I just picked up for 10 bucks it id only 15x but you can see the heads largely when you use it just right.
You want to get closer you need a microscope. They are pretty affordable for ones you can connect wirelessly to your device's. Or wired to the computer.
Some pretty cool ones out there with the screen already on a stand with them and not too heavy or expensive like the real lab scopes.
I sadly just lost one of my purple diesel to being too rough so dont worry we are all plant killers my friend purple diesel was a year old and I just threw her into 12 and 12.. Broke that bitch sad day yes but her sister is quite the specimen now so it's ok just a plant.
To the naked eye you miss the 3 white fly aphids hiding on this little sprout. Even got through the tube cap with it on loose.
Another good thing to have a loop handy is being an avid pest controller
I let a jumping spider go months ago in the veg she is still doing her thang.
Great Job so far Digger that is gonna be one happy plant.
To the question about the buds growing together you never know but it is how it appears she wants to be so a fat thicket of bud a football I like to say it will be mighty it looks it! Try to make it a rugby!
Kudos!