jwerta, my advice would be to remove the whole section(s), let the wound heal and pot them up, they will take off a lot faster than cuttings with no roots. I wouldn't bother removing the roots. It would cause more damage than good IMO. Also, having some aerial roots can be a good thing, if they are low enough, and can penetrate the potting medium, you will find that they increase vigour and the size of the sections and the whole plant in general. I have quite a few TBMs and I just leave the roots to their own devices or as mentioned, make them new plants from sections that are throwing roots.