I think I know the answer to this, but thought I'd cast it out to see if anyone else has found a way. Is there any way of filtering/excluding content types or content paths when using uSync 4? There's an umbraco 7 site that I need to create a packer for, and would like to ignore a large chunk of nodes.

There are some options in the config https://github.com/KevinJump/uSync-Legacy/blob/out-of-support-main/docs%2Fhandler-config.md

Brilliant, thanks @Kevin Jump! I'll give them a whirl tomorrow 👍