Here are my scripts for firmware retract and accel changes for travels and infill.
To make this work you need to set your retract to be 1mm and retract feedrate to be 100.
This will help you cut travel times (ooze) and keep your outer perims nice and perfect.
{REPLACE "; outer perimeter" "M204 S3000\n; outer perimeter"}
{REPLACE "; inner perimeter" "M204 S3000\n; inner perimeter"}
{REPLACE "G1 E-1.0000 F100" "M204 S8000\nG10"}
{REPLACE "G1 E0.0000 F100" "M204 S4000\nG11"}
