Hi Adam, a lot of cool ideas in there!

But yeah some of what you describe in there would be quite difficult to achieve and would take a lot of time to implement. I'm just not going to have very much time to spend on this so my primary target is going to be something simple like using a much coarser angle metric on small pieces.

Just that by itself should give a pretty significant reduction to memory consumption for complex models with a lot of little pieces and little fillets in them.

- Michael