If you do put them on, I would only use them as stops for holding the oars in place while on anchor. I have had a drift boat for about 1.5 years and they were on the oars when I purchased it. Finally, moved them way up so they are well above the oar locks when I am rowing and it makes a huge difference. Personally, I think they hinder a persons ability to learn to row and handle the sticks properly. I progressed much quicker once they were moved up.