[quote=Aranon;233273]Well I decided since I was so worried about root rot that I transplanted the two larger ones into 17 gallon buckets, I inspected the roots and they looked pretty healthy to me aside from some black shriveled up roots that I removed, the plants were very root bound too. I added some pics of the roots, do they look okay?
The only thing I would do differently for your (my) zone is to do your repotting during your growing season, this will give your plants time to recover from the root trauma.
Doing it now in our zone (repotting) just causes more stress which your plants might not be able to handle over the winter
I will not pot up a banana after mid August unless I have to.
Imo.