Troubleshooting printing layer squashing?
Well, for a 0.6 wall thickness using a 0.6 nozzle you should have one line for the whole wall. But I´m seeing in your prints walls of 0.1 and 0.4 as infill, Why?
I´m using simplify3D and I can see the results about walls and infill prior to send to the printer. On this kind of parts avoid infill and give priority to walls.

So the main problem with your gcode is that wall thickness, is too much difference between the filament extrusion 0.6 vs 0.1 this is 16.6% of the printing flow, so you need to set print flow to 16.6% or 20%, not 80%. 
You must need to use retraction to avoid blobs and set a lower temperature.

I saw this video to control Coast issues, but is explained how to set settings on Simplify3D; I hope you can visualize your issues before printing.
https://www.youtube.com/watch?v=WWpdGY0V-gM