Fresh PLA.
One thing I noticed, and was easy to miss when looking at other variables in printing, was just how ‘wet’ fresh PLA looks when it’s printing. The layers just FEEL like it’s going to be a successful print, regardless of how long it will end up taking.
I tried capturing that in a picture and about all I can say is: look at the shine on the plastic on the right-hand side…that’s a good strong layer.
I’ll also add that it’s pass 1 of three, you can see the circle in the middle that three passes make a solid, thick, wall.
@Shauki you should see my v4 that the v6 replaced - that one had a fat layer of goop from the ABS steam building up on the bottom of the heat sink, the heater block and nozzle were black from cooked plastic and the fan shroud had turned into a two-tone piece of art.
Switching heads with material would be a PITA with my current setup…but It’s not like I’m switching materials a whole lot.
I’m poking about with your Lighter flintwheel extruder, or at least it’s on the short list - I bought a couple of lighters. 
Hmmm, I’m bad at EE math, but I suspect that would be a lot of amperage to send (and lose)
Dude, they were under $2 at the checkout counter. And yeah, not a lot of smokers here.
Perhaps if I spent more time in bars.
@Shauki I’m sure it’s workable up front (It’s what light rail uses), but it would add complexity and another failuremode…are wires REALLY that bad a thing?
@Shauki Yes, but you have to destroy your laptops when you return, you can’t drink the water, and you can’t see through the pollution! 
@Mike_Miller I have noticed through the years that surface shine, for me, related to temp. I can make a dull “smooth” looking surface, or I can make a hard looking shiny surface. This only applies to PLA, but for me if I burn hot I get shiny, cold is dull.
@Brandon_Satterfield This one’s running at 200…I might be able to dip as low as 190, but 180 is a guaranteed failure.
@Mike_Miller agreed, I have had one I can burn at 180. It was a generic white PLA. My ( don’t shoot me it was heavily discounted 6 mo ago ) makerbot blue 1.75 PLA will be dull at 186 and shine like crazy at 205. I have tried this with yellow, red, purple, and green to get the same results. Although, temps vary for each.
