Once I have used a roll of Breakaway for several prints I constantly have issues with under-extrusion. I'll get through several print jobs that come out perfect and then one day it just goes bad. I might get a few good layers before it starts to under-extrude, eventually giving an "Out of material" message on my 5S. I have a Print Dryer and have dried the roll overnight at 60 Deg C. Sometimes that helps, sometimes not. PVA is even a bigger hassle. I don't think it is the Print Core or feeder, at least with the Breakaway, because ABS and PLA print fine out both Extruder 1 and 2. I don't have a Material Station, so I'm not sure if the updated feeder would make a difference. I always store my materials in sturdy zip lock bags with a few desiccant packets whenever I'm not actually printing and as I've stated above, I've tried drying the material. Anyone have any tips? Most of my prints require support material and I really don't want to have to throw away 3/4 of a roll of material due to failed prints. Thanks in advance.