Dual Material Spool

I was having issues with some ABS spools, they were warping after using them in a filament dryer, so I decided to explore other options. I wanted a spool with heat resistance and stiffness, but I didn't want abrasives that could contaminate my filament. This design is my attempt to print a spool that's 100% compatible with AMS/Lite/2 Pro, heat resistant and stiffer under heat (so it's suitable for drying) but doesn't expose any abrasive fibres. These print profiles will print a spool that uses ASA-GF inside (in white), but regular ASA outside (grey): Other combinations that might work are:PC and PC-CFPA and PA-CFABS and ABS-GFPPA and PPA-CF (please post a picture if you do this)You should use a dual-nozzle printer like the H2D or the H2C to avoid contamination, sharing the nozzle across both materials would defeat the purpose of these dual-material profiles and you might have fibres in the outside walls and layers of the spool that might end up clogging a 0.2 nozzle or