[ailun]

That's why I said "more worried," though. Of course you can't be sure that they are doing a perfect job for every situation. But I don't think I'm going to do a better job manually than those heuristics - that's why they mostly aren't exposed to the user in the usual workflows, because people who spend their lives researching best practices for these algorithms don't think it's a good idea most of the time. If those heuristics aren't working, you're better off reparameterizing your model rather than messing with them. Hence why I don't think they are worth worrying about too much.