I installed two Garhauer quad rope clutches on my Catalina 30 cabin top last spring. They're made very well and have performed very well. The bodies are made from polished stainless, which doesn't fade and look bad like the Lewmar clutches they replaced.
The only problem I had was with labeling the levers. I used a machine cut masking to airbrush the labels on and I guess my prep wasn't good enough.