Bubble AK48 question

I am into my 53rd day of my first bubbleponics grow utilizing white dwarf, Red Dwarf, Il Diavolo and AK48 the plants are doing incredible for exceeding my expectations. However my AK48 is just now begining to flower. All the other have been well into flowering and probably will be ready sometime in next 10-14 days. There is no way this AK48 is going to be done anywhere near then. This is not a problem but was wondering if anyone else has any experience growing AK48 using the bubbleponics system and if they have had this same issue. If so how long is this thing going to take to finish? Also approx. how tall where your AK48's. All the auto's I have growing in my set up are anywhere from 2 to 3 times larger than what the advertised height said. I expected the plants to be somewhat taller maybe 25-30% but this is incredible. Is everyone else also experiencing this increase using Auto's. The AK 48 is currently 41" tall from the lipe of the grow cup to top of plant and like I said it is just now flowering. The Il Diavolo is 66" tall and has almost out grown the tent. Any input would be great thanks in advance for the help.
 
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