You made it to easy for me last time, my predator is almost the same as yours. I'm using the omg v2s extruder now.
I just had a issue start with the filament sensor, it's not the filament sensor from what I can tell. It was working fine then yesterday started acting like there's no filament randomly. Maybe I should add on the smart filament sensor, has anyone been successful yet?
Also it started going to a random spot for filament change, will not home then crashes into the part after restarting and is at an angle when trying to resume. I have not seen anyone else have the issue when resuming. It will do test just fine, it will calibrate just fine and until yesterday changed filament just fine. Maybe my firmware corrupted somehow?