I recommend printing solid, it's a small part so better strength is better and won't cost you much. I found that commercial equivalents didn't offer enough flexibility, so I made my own mount. It's not been tested for long term use, so use at your own risk. That said, it should be fine.
Printer Brand:
Creality
Printer:
Ender 3
Rafts:
No
Supports:
Yes
Resolution:
200
Infill:
100
Filament:PolyMaker PETG
Category: Electronics