My 10' 4" hollow beachwood oars with douglas oar locks are awesome. I found some old sculling oars at the boatshop in need of repair, scrapped/bleached/glassed/epoxy tips, and reused for some awesome oars. I have tried a paid of 10-11' snap together oars with carbon fiber blades intended for whitewater rafting; my only complaint was they felt heavy when rowing, both where extremely durable and folded up great in the bottom of CS17 or trunk of my car.
The curved spoon blades are the beachwood oars handle great moving the boat at 2.5knots and if I try hard 3.5knots.