The majority of the fresh deer and elk skulls I have done, do quite nicely with relatively short dawn soaks. For the nastier skulls, seems like quite a few options. I don't feel like messing with ammonia. But acetone in a sealed container may be perfect for predators and what I am looking for. Going to grab some later today hopefully. Thanks for that link CT.
Side note, after 4th water change in 10 days, the cat water is looking very clear today. May make a run with peroxide at it soon.
