The NBT Ratchet Conversion Kits were designed to replace the Rachet Teeth on the NBT Monitors to a larger deeper rachet to better secure the NBT Monitor, as well as replacing the factory NBT gimbal bracket to a heavy duty, better suited size for mounting at the bow. The hole pattern in the gimbal brackets match the BBT Stack Top pattern.
See specially designed mounting plates/cradle that also match the BBT Stack Top hole pattern so the conversion plates/cradle will mount Directly to a BBT Stack Bow Mount, making mounting options much better suited for the large monitors to match up to your preferred combination of graphs.