When you say maternal incubation, you mean with the female wrapped around? I would advise against that. The female only stays wrapped to protect the eggs (that's what they do in the wild.) They don't serve as an incubator - the external conditions provide that. When you incubate the eggs, you have 100% control over temp and humidity and leave nothing to chance. With a female that only produces once a year, I would want to do everything I could to see those eggs, which were hard to get into the world, hatch.
Also, after she lays eggs, your girl is exhausted and probably hasn't eaten in a couple months, so you can get her off those eggs, back in her tub, and back on feed. She'll bounce back quicker and regain weight if you can get her to feed and relax after laying those eggs.