Hi guys. Does anyone use PETG filament? I love the way it looks but I've been struggling to get rid of these 'zits' that I assume are caused by retraction or layer changes. I would like to know what effects retraction distance and speed have. Would a higher retraction distance and speed help? Maybe more of one than the other? Here is what I have tried: 1) Coasting 0.2mm, Wipe extruder, Retraction rate 120mm/s, Retraction distance 1.5mm 2) Retraction rate 120mm/s, Retraction distance 1.5mm 3) Retraction rate 400mm/s, Retraction distance 1.0mm I would love to get smooth prints from this material. I don't really know what parameters would be most effective in removing these 'zits'. I've looked this up and tried to implement some of them with no success. I'm printing at 25mm/s and 235C at 0.1mm layer height.