Flipping her to flower?

So heavy defoliation here I think now would be the perfect time to flip though if you have recently defoliated her I would at least wait for her to recover and grow some new fans before the flip personally the more fans she has the more energy she will produce to give that flowering cycle a well needed kick :) 11 weeks is very long for a veg stage even in soil. You can tell she is begging to be flowered by the look of the pre flowers this could save you a week or 5 or so days towards the end. the stretch is very dependent on light and they will only stretch to how much light they have. they can go incredibly tall if you have bright lights. also the pheno type comes into play when stretching too along with temperature of the grow room. some strains can double in size other hardly stretch at all. another great thing about this site is pretty much every strain you choose someone has grown it before so you have a look and see what characteristics she is going to have. that can give you a better understanding of what to expect from that pheno. Great looking plant anyway best of luck for the flower cycle :) 👊

Flowering usually depends on how much space you have relative to the lamp distance from plant, keep in mind that plants may double their size during "pre-flower". Make sure to leave at least extra 30% of your plant size in safe distance from the lamp before switching. Hope this helps! Good luck and happy growing :)