I noticed a difference between the skeinforge slicing and slic3r and think it may make a nice addition if possible to Slic3r. When I print on my makerbot with replicatorg it actually follows a perimeter when moving from one location to another and not printing. I think this helps a lot with stringing created during non printing moves because any stringing that is created is actually on the inside of a print. Slic3r seems to move from point a to b in a direct line (which is not bad for speed). Maybe an optional flag that will have it follow the inner perimeter when going from a to b during a non print move would be nice?

If you want the Slic3r devs to see this, you need to put it on the Slic3r issue tracker on github as a feature request. [github.com]

Stopped using Slic3r for this very reason, no comb/wipe/retract within island.