Ash, I posted a photograph of a recent pen on IAP earlier which was Padauk and Sycamore mainly. Padauk is really powdery when turning it and contaminates everything around it.
I minimise sanding by taking very light turns at the end with my straight carbide turned at 45 degrees.
If done well then very little sanding is required.
An application or two of sanding sealer or CA before any sanding ( Abranet )
Hope that this helps.
Looking forward to seeing your segmenting.
Alan