I'm looking for an alternative to PVC and expensive cedar. A local mill sells larch by the foot for the same cost as pine. It's kiln dried to 8-11%. I know it resists rot very well but my experience with it goes no farther then building Adirondack chairs in the earlier part of my career. It was a pain to round over with the router. I'm thinking down cut spiral at the least. Any suggestions or tips would be appreciated.
Regards
Randy
PS - Attached is one of the designs I plan on cutting for flat sawn balusters.