I like Slipknot :),
How have you been? I would suggest not using all recycled material. To be honest any recycled material over 25% is gonna be a fail.
Also be careful choosing the plastics, it should not create any extruder, spooler issues, so be gentle.
I know it's hard to throw away your old stuff and that is why you want to recycle, but if you use better filament you'll get better result. use atleast 75% virgin, for smooth printing, that's about it. Please try to keep all that in mind and Best of Luck! Thank you.