The following are the steps required to modify a fixed propeller to make it compatible with the Stripper rope cutter.
The forward protruding lip needs to be removed.
This is how we did the one illustrated, other popular methods are to use an anglegrinder or lathe.
The requirement is to produce a flat plane in line with the main body of the centre hub.
The drive screws on the Stripper will then engage with these holes.
Tip for getting the position for the holes - Slide the Stripper on the shaft and apply a spot of paint (antifouling will do) to the heads of the drive screws, slide the propeller on and off to gain an imprint of the hole position. Alternatively mark off as per the diagram in the fitting instructions.