So I was noticing some ghosting artifacts in my prints and during my testing I saw that there was a lot of wobble introduced by having the full spools on the top of my frame. So I decided to find another way to hold the spool. I would have just done an external spool holder but my current setup makes that tricky just from a logistics perspective so I figured a side spool holder would be best. I found a side mount, a remix of a spool holder with bearings, and a side spool filament feeder on Thingiverse and a short time later I was off to the races!
If interested here are the Thingiverse links to the STLs I used:
CR-10s Pro Side Spool Front to Back Mount by jsullything - Thingiverse
Creality (Ender 3) Filament holder 80mm spools by mjoaris - Thingiverse
Note: You need to print only the roller and the nut from the above and then print the holder below:
Roller Holder Rotated Clipped by efelton - Thingiverse
CR-10s Pro Filament Guide for Side Spool by jsullything - Thingiverse
Cr 10 S PRO filament roller guide 608 bearing by L3D_Help_Guide - Thingiverse
Note: You only need the bearing wheel from the above. I had to print it slightly larger to fit my 608 bearing.
I adjusted the orientation in Cura for both the mount and the filament guide to minimize supports. I also found that the t-nuts I had were too large to fit the slots in the mount so I had to modify it slightly in Meshmixer to increase the size of the holes. If anyone wants that I can always upload it (or send it to TV as a remix).