Changed the config to set a 50 block range around the top pipe, and it still only does it's regular 3 block radius, leaving it in a near useless state, unless I wanted to spend the next 10 hours or so moving it under each sulfur spot I need to clean up, which would be slower than flying up there with a vacuum at this point.

If you're using the in-game config GUI, then yes I see why that is happening... I need to add some code to have those configs sync when you change them that I forgot to add.
For now, change the configs in the config file itself and restart MC.

Oooooh it didn't save with the in game menu, okay, that makes sense. Sorry, should've looked at the cfg file before blindly reporting this, my bad!

No problem, the fact that it doesn't save from the in-game menu is a bug though, so I'll get that fixed.