Originally Posted by Rowan

Does anyone here know of someone who has converted a bike to SS after damaging and removing the rear derailleur?

I ask because when I have used old-style cogs in an aborted FG experiment, the chain simply would not stay on the cog because of the tooth offset. I've not tried running a rear cassette as a single-speed and would like to know if it actually works without the RD acting as (a) a chain tensioner and (b) as a guide for the bottom run of chain on to the selected gear on the cassette.