5th Week Flowering - Plants Rootbound

Plants are in their 5th week of flowering and are rootbound. Would it stress them too much to transplant to a larger pots while they are flowering? Should I wait it out? Buds are looking good, but all most of the leaves are turning yellow and dying.

Strain is White Widow
400w hps
I could take a picture, but a root-ball is just a rootball.

I transplanted to Larger Pots today. They will either get worse or they will get better.

Thanks everyone for your thoughts.

mine too dude...what do I do

Here, read this
https://www.rollitup.org/indoor-growing/143638-newsflash-there-no-such-thing.html

I got the same issue with one of my indicas.....its bout 11 weeks into veg and i plan on goin to 12/12 in two weeks. I hope to see a bigger yeild this way. Although the roots are showing more and more up top which i think is what your saying....Its been like this for bout 3-4 weeks though and seems to be alright. Should i transplant or just leave alone?

As long as it's getting all the nutrients and water it needs, it should continue growing upwards. The only reasons the roots continue growing throughout the pot is to get a sturdy base to hold the plant.