New Grower How big will she get? Fast& vast

[Supersport]

How big will she get? Fast& vast

I'm just abit over 4weeks with 3 fast and vast, one (Roxy ) is grow very tall at around 24 inch already . Looks like I burnt the top of the main flower yesterday as she grows more the a couple of inches a night. Clf grow. How big do you think she going to get. I have to readjust the lights almost every day. Pic is from a week ago. Her sister plant is about half her size

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[UpInSmoke]

Can't really see by the image but have you starting flowering ? thats when they tend to do a lot of vertical growth you can always minimise this with less N in your feeding if thats what you want...
if you haven't flowered her yet then they usually double to triple in size, triple being for more sativa plants but i've only experienced plants going about 2.5x what it was before flower.
try and get the smaller plant at the same canopy height as the tallest because cfls loss intensity quite quickly so you want them as close as you can get em (about 2-3iches away)

 

[Supersport]

Yes she has a lot of flowers already and grows a couple of inches a day now, the other girls are propped up on risers to get the same height. Problem is I burnt the top flower on her as she grows 2 to 3 a night. I'm thinking maybe going less top lights and moving them to side lights. 5 42 watt cfl on top ,one onside now. 4 on v angle 1 vertical , mix of 6500k and 2700k. That's just for her ,will be switching over to more 2700k lights