Roller and Filament Guides for Anet A8 Filament Spool Roller System

I really like the Anet A8 Filament Spool Roller Arm by ulightme (http://www.thingiverse.com/thing:2016985) and it works very well except on occasion, the roller guides would shift along the rod (I chose to use stainless steel) and this would cause the spool to fall off.

I designed the filament guide to clip to the rod in between the roller bearings. This provides a guide to keep the filament from pulling at an angel to the spool as the X-axis moves. I can easily bend the guide upward to cli