According to the manual it is required to use both.
What are downvotes seen by kbin users on lemmy content? It could just be the kbin instance’s local downvotes of the federated content but I never noticed a lack of down votes on lemmy-hosted content when I was running a personal kbin instance.
I did the same and have had a great experience. Can you advise on the slicer settings you’re using to speed up the prints? I haven’t found many specific examples and there are so many variables!