How do you attach the Bac-Vac to the Super Z? I've never seen one in person and hope to get one before spring mowing starts...especially if it is as wet as last year. I like the finished look of mulching, but it caused problems w/ spreading Red Thread last spring. Mulching seems to just distribute the infected turf to other areas of the yard. I've read on the Hustler site that no tools are required to install the "hopper" and I'm curious as to how it attaches. Thanks for your help.