Some folk..
As an aftermarket mod drill a second hole to insert a pin to keep the rudder down. I prefer the pop up design, I think its saved my rudder a few times. Unlike the diagram above, mine also came with a small hole drilled on the aft edge, to which a line was attached with a snap shackle to haul it up completely out of the water and clip to the aluminum housing. I though this was a standard thing but looking at this diagram I guess not.