Hello, I've just replaced the stock hot end on my rigidbot with a V6. It printed in ABS very nicely with no jams, but it always jams when I'm trying to print in glow-in-the-dark PLA. I've tried adjusting the temperature, bringing the retraction rate down to 0.8, and even tried feeding the filament through a sponge soaked in canola oil. What else can I try to fix this? Is it possible that the glow in the dark PLA is too think or not smooth enough? It has a different texture to normal PLA.