Use RClone to locally cache torrents fully before seeding. Possible?

[ryyt]

I am looking to use VFS caching to solve 2 problems:

1. Caching (obviously), so the data only has to be downloaded once.
2. Reducing API queries and this is where chunking comes in. Torrents will often be built with 500K - 16M chunks which results in many random access requests, but with VFS you can override that and set it to 100MB or more, which with a fast connection will be downloaded very quickly.

So how do I accomplish this? Is "--vfs-cache-mode full" all I need? (plus setting location, size etc.) Does it use chunking by default or does it wait until the whole file is finished before making it available? Can I use/specify chunk size with it? I ask because this thread:

New Feature: vfs-read-chunk-size

Recently a new feature got merged into rclone beta, the --vfs-read-chunk-size flag for the mount and cmount command. Probably all cloud providers will limit the daily download volume and count the requested bytes therefore. The problem is, when a file is opened for reading, rclone will request the whole file from the remote. This will add the whole file size to the download volume, even when only a few bytes are read. Additionally every seek call will request the file from the new offset until…

Says the chunk flag does not apply to cached remotes which confuses me.