They are lighter. Not including rope or oar rights, which add weight to the brass ones.
One thing I need to find is the right lube. Moving the oars further from the towers seems to increase the friction on my towers. Maybe I need to machine them out and go with bushings.
Has anyone done this with good effect?
Hey, if you want me to take a dump in a box and mark it "guaranteed", I will. I got spare time.