i'll put this in boxing terms because that is one of the things I really understand.
Turning most alternative materials is like fighting a left handed boxer. EVERYTHING is different!
The typical advice here is "go slow and be careful". Just like with fighting a left handed boxer, if you go slow, You WILL get your "A$$" kicked, because they know what they are doing and you don't!
I have found that most of the alternatives that I turn, (some exceptions) repond much better to a fast lathe than a slow lathe. Additionally, carbide tools "ain't no" friend to wood. Conversely, I would NEVER turn most alternative products with HSS tools. This would mean I actually have to sharpen them. I SUCK AT SHARPENING TOOLS.
If my woodchuck doesn't draw blood when I run my finger across the insert to see if it is sharp, I turn the screw and bring on a fresh edge. Aluminum, stainless, brass, BLACK Tru-stone, jade, soapstone (to some extent). antler, sea shells, concrete (yes concrete), braided copper wire, alabaster , and rebar will laugh at your HSS tools and simply ruin a good tool.
If you are going to "specialize" in alternative materials, first revisit your "fight" plan and get the right tools and the right lathe (or lathe speed) to cut the materials. They ain't your father's oak tree- They are not wood and they take a new set of skills and tools. Additionally, I've found that turning UP the stereo or TV, so that unannounced visitors don't scare the crap out of you, also helps.
Respectfully submitted.