This is especially true for those projects featuring prominent members from several well-known groups. Back in 1985, X's John Doe, Exene Cervenka, and DJ Bonebrake joined Blasters member Dave Alvin and others on an album called Poor Little Critter on the Road . Maybe that's why the Knitters remain so damn fun to see live. After all, no new albums equals no forced, diluted focus on new material, which in turn equals no clunkers to mar your fond memories.
Brevity is the key to a side project's longevity.
Pour once and then, for God's sake, break the mold.