Pros:
- Simple unibody approach
- Mylar sheet slides into the fitting without need for modification (holes/shaping) -- gribs very tight; thus a pain to install but I doubt would fall out
Cons:
- depending plastic thickness for mylar may get excessive bowing on inferior portion (could use a brace like Prusa's version)
- attachment points for band are minimal; at a junction that is designed to be load bearing
References:
All the 3D files