Comments regarding Cyclone Rake (Woodland Power Products, Inc.)

I have one of the Cyclone Rakes and it does everything that it is supposed to do. The one weakness I have experienced is that the zipper that closes the back flap/door of the unit is undersized for what it is asked to do. It began to be difficult to get zipped last season and this year it will not zip at all.
When the unit is fully loaded there is tremendous strain on the zipper when trying to unzip it to empty the load. The company does not have an email contact on their website other than for promotional materials. I would like to contact them to see what can be done about this problem. Overall, this is a high quality product that, except for this one problem, does what it is supposed to do. Surely there is a fix for this issue.

We have used the Cyclone Rake (commercial size) for two seasons on our 5+ acre, about half-wooded lot. We use it to pick up grass when mowing, and for picking/shredding leaves in fall. It does very well at both, clogs infrequently unless material is wet and compacted. It saves an immense amount of time (and blisters) in the fall, vs. raking and blowing. It does shred the material reasonably well, so that it composts fairly quickly.