I know that the strings are due to extraction but what are the blobs from?
these are my Slic3r settings:
Extrusion Multiplier - .9
Retraction Length - 1.5
Retract speed - 25
Printer setting speeds - 80mm, 80%,70%,80mm,80%,80%,80mm,80mm,50mm
travel speed - 130
First layer 30%
If you need more info let me know and thanks for the help.
Bob