Reenable heated bed for black ABS
Use more aggressive slowdown behaviour for natural PLA
Use retract_lift
Retract more and faster on right extruder
Add more filament profiles
Add ultra slow printing profile

For really troublesome prints
Use first layer extrusion width of 0.8 for 20% infill
Slow down perimeters in 20% profile
Use concentric for top infill
Double the solid layers (0.1mm layer height)
Use honeycomb infill for 35%
Use 3dhoneycomb infill for 35%
Slow down 35% profile to reduce corner ringing
Bump top_infill_extrusion_width to nozzle diameter
Reduce external perimeters extrusion width for better finish
Set a resolution of 1 micron for simplifying exceedingly detailed models
Set default xy_size_compensation
Update slic3r.ini