My second paragraph responded to "t4mv" who appeared to be citing chapter and verse from Santana's marketing literature.
Just for the record, folks, I DON'T own a Santana (I have a Michael Johnson old school w/ Phil ovals), and I don't ride tandem often enough to get caught up in the "Santana literature" so I'll just say that two Mafac cantis and a Phil disc are enough to control the speed of our tandem, thank you very much.
Yeah, the Hobbes people...I almost forgot about them....too bad.
Fenlason, this is not an attempt to 'jack your thread. Thanks.