You really need something like this for floppy, flexible filament failure fighting. The old mount will allow the PTFE tube to flop over when printing flex filaments, which can cause a jam. Make sure to ream out the filament passages with a long 2mm bit to ensure proper extrusion.
ZIP has an STL file for printing that shows how I jammed this together in Rhino with no attempt to be pretty about it. I'm not proud. I was in a hurry. It works.
