Cam cleats are different from clam cleats. As catamaran sailor I preferred cam cleats for things where I had to reposition my hands a lot and did not have use of both hands to do the job.
this page shows cam cleats and clam cleats as well as jam cleats
http://www.westmarine.com/webapp/wcs...Search?Ns=Most Popular|0
the above search result probably will fail in a few days so here is an example of a cam cleat:
http://www.westmarine.com/webapp/wcs...classNum=10239
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