Heat creep or bad filament? (E3D V5 / fiberlogy Easy PLA)

[BrokeIn3D]

I'm done modding my E3D V5 into a V6. Found a picture of a V6 heat break cut apart and based my heatbreak on it. I took a M8 bolt and cut off the head, then bored a 2mm hole through it. After that i ground down one end to 5,9mm and formed a M6 thread to go into my heat block. Then i thinned down the heatbreak to 3mm and bored through it with a 2,5mm drill to the same spot as in the V6 heat break. Also bored and tapped the heatsink to receive the new heat break.So far the results are ok-ish, i can print but jams still happen, although much less frequently. Now it can continuously extrude, sometimes even without jamming, but some parts still jam nearly every time and in a way that leaves me without a chance to recover them.This problem is still far from solved but there's still room for improvement. I'll see if i can polish up the heat break. Also, my heatsink is a little mangled up because i kinda got it stuck in a jig i made.