Three pieces in this order.
1. Half size used to place into the feed slot for photos showing the inside geometry fit. send Left, Right & Center.
2. Full size without side barbs. Use screws to hold the insert in place. One end tucks into channel.
3. Full size with side barbs for a snap-in insert. You will need to use a Dremel router to cut side grooves within the feed slot.
You may need to file the pieces for a better fit. Let me know what your changed with photos and drawings.
I will make alterations that you feel needed.
TomLuQue@gmail.com
Barbed INSTALL VIDEOS:
https://youtu.be/VvgMuhgE8TI
https://youtu.be/kjJ8F6KNM1Q