I'm still looking. Found a couple, but out of my price range at this time. I may consider a six shoe clutch 090 AV instead, if something affordable doesn't appear. In the meantime, I will consider my 880 as acceptable. If only I could link two in parallel... (two in series would be one at each end of the blade, which I'm not opposed to considering. Think of that. Like a modern long train, with pullers and pushers linked by controllers. I probably don't need it, but may build one just for having done so. Like mountain climbers. Why the heck do they do what they do anyway? It's beyond me...)