go big or go home

If I veg my girls for 7-8 weeks will that increase my yield or will it be the same as the minimum 3 week veg ?

7 alien OG plants... 4 weeks in. Just fed them yesterday. Cutting edge line.. plus Humbolt county Snow storm... plus Sonic bloom. They fucking love it. I'm sure my ppms are thru the roof. So fucking what. Some can take it... some can't. I'm kno my PH is on point. Never an issue. Running coco. 6...