Hey Geoff,

By "no leaks" I meant that the plastic cannot leak from internal junctions because it is a 1-piece nozzle. As for the dribble ("ooze"), there are ways to significantly lessen this. I haven't tested with dual extruder, but it you are using 1.75mm filament and you customize Prometheus to have a short "melt-zone" the dribble (or "ooze") will be almost entirely eliminated. So that could work...

Eric