I have my SV07 in an enclosure and thus have the filament spool mounted elsewhere that caused some excessive drag in the filament path as it passed through the runout sensor. 

So I made this little bracket that moves the filament runout sensor to the toolhead. This requires removing the chunky blue housing of the toolhead and uses some of the vacated mounting holes. You will need one of the housing screws to mount to the toolhead and a pair of M3 screws to mount the sensor to the bracket.