Oh yeah i see all the blades aswell, thats defo a diff pheno from my 5blade BBs. Hope its somethin special. I dont think you have vegged too long, they dont stretch like they do if you leave them 'Au natural'. You should have little trouble keeping the height down - If any bud site starts getting too tall you could try supercropping or just using string to tie it downwards to the pot rim.
what is your height limit anyhoo? I have my BBs about 6-7inches away from a 400w HPS (its in a cooltube) and they handle that fine - no burn or bleaching.
here was my bbs when they were little
View attachment 2125788 its the two on the left - very simillar leaf stucture to one of your phenos.
here you can see how i kept the plants really really small. Infact this was an experiment to see how small I could grow a photoperiod plant - you can see the small cabinet I have em in ATM in last pic. Im pretty ashamed of the plants as tbh they look crap.please dont judge me, failed experiment
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