The big mistake I was making (and the reason my prints were so horrible) was that I was printing from the BB nozzle. Once I switched to the AA nozzle, my prints came out beautifully. (Note to self: Read the manual.)
I have 5 Ultimaker 2+ machines running full time making the stacks of 4 Prusa file. This typically leaves some filament at the end of the spool that I was afraid I would have to waste. However, the S5 is fine with printing from relatively short pieces of filament. I've made some UCLA-colors headbands, some USC-colors headbands and this morning I made some Los Angeles Lakers headbands. The nurses and doctors report that the bright, fun colors are great! They are especially popular with the younger patients.
Ryan5829--I had the same problem with the 2+ machines where they don't make it all the way around the curve, resulting in that canopy of filament look. It happens at the break in between the headbands. I solved the problem by slowing the print to 85% when it gets to that break. I have one 2+ that doesn't have the canopy problem so I'm wondering if the set screw on the X axis of the other machines need tightening.