Half Pound Grow - Blueberry Auto

Huge update - PH has been at 5.5 for whole grow and today punched at 5.3... I have acid for soil... damn thing... needless to say got my new PH tester and will be raising ph up to 6.0 then after a few days try to get it up to 6.5. That is why my plants suffer so bad, and now I feel like a tool. Lol either way we will harvest and weigh these gals but I'm not holding my breath... Bb1 - I have started LST as she's already to 6th node, she's a quick rapid grower. I am experimenting a bit with light height and have pretty much made internodal spacing non existent. It won't and shouldn't be a huge plant but should yeild a fair bit. Looking for some education on node spacings and adjustment of lights if someone has any info. Should I allow the lady to stretch a tiny bit or rock it as is? Idk Bb2 - She is recovering now from funky genetic start, I discovered the peat pods I germinated in actually dried out and the seedlings weren't getting adequate water so I fixed the issue and here we are, she's recovered almost entirely and new growth appears normal. Bb3 - same issue as Bb2 I fixed the issue and I've been being careful to not over water any of the ladies, this lady just seems so much smaller than the other 2 and it's only 2 days behind Bb1... genetics? I have also gone to a logical and practical watering schedule based on what the ladies tell me I do not water daily and likely will not water a single time this whole week (sub irrigated and medium is still heavy) as it seems to be prime for the week to let the ladies use available water and nutes in the medium. I'll post photos as I get them, been a hard week as I recently badly injured my knee so it's hard to walk. Happy Growing and Happy Toking! Update... I snapped the stem of bb2 and left her topped at the 3rd node... I'm pretty upset about it but it happens it was a learning point. If you LST a plant make sure the stems are strong enough to handle it. Update - Bb3 is showing signs of root issues whether damping off or root rot I don't know but she's a lost cause I'm going to finish this week with her and then plant a great white Shark photo... I'm not impressed with these genetics all thing considered. They just don't seem stable. Final update of the week, BB3 is recovering I've increased the air flow in hopes of drying out the pots faster as this may be what the issue is. She's again bouncing back but she's been so stunted it'll maybe yeild 20grams... idk we shall see. Nonetheless I decided to give her a chance. See you all next week.