Thx all on the retraction comments.

ATM, I have ABS loaded and printing. I figure that while I have it in the machine, might as well as print off some ABS specific stuff I've had in mind.

While it's there, will run the retract test on the ABS once the various jobs have been finished.

Thx for the pointer to the gcode viewer..., cuz my eyes just don't hack it anymore when it comes to sussing out when things go wrong in tiny little places.

When I get back to PLA, I'll try 1.75mm for the retract distance at 20mm-s. If that gives a positive indication, will try at 15mm-s.

I'm also VERY interested to see if the parts cooling fan makes a difference on the "4 towers" part of the test. Not sure if I have all the parts handy to get that wired as soon as I'd like..., we'll see.

Anyways, will get back to more fun w/ retraction after some bla bla bla on my part on ABS once tonight's/tomorrow's stuff gets done.