Ctna. - Root Rot - Divide or Just Repot

[Dorchid]

This Ctna. has a lot of root rot and the new growths are very high up on the plant while the old growths are all very low. It has 12 pbulbs including a new one growing very high. I’m going to repot and wonder if I should divide down the middle or just leave as is. My concern is that the old growth is so low (as was before unpotting) it will be well below the surface. If I divide, maybe I can angle the 2 halves so the new and old growth are more in the same plane. Thought?