this should be awesome - http://mechanicalcolor.com/wheely/ Haven't tried it out but automatic welding of vertices in Modo's radial array has never worked for me properly.
Since I found myself doing the same basic actions last night to start an unwrap I decided to script it (literally just a list of running a few tools). The script does a select: boundary & sharp edges, runs the unwrap tools with its current settings (Usually cylindrical covers the widest array of shapes), and then does an…