Windows (debug): SoulseekQt-2015-3-25-debug.7z
Try the 'Configure User Groups' button associated with the Users tab. There's a download priority setting there. It's only been very basically tested, but give it a try.
oooh sorry, i never saw that! looks great. i'll test it.
oh by the way, it would be helpful to have a column there in which the priority of the groups is shown.
I second this.