Scull oar shape help

I would try the oar before altering it.

I wouldn't risk changing it from FSD to FSU as you could weaken it.

More bend = more roll If you get the bend right you don't need to use your wrist as much.
I put the bend where the blade meets the handle ....put a string from blade tip to end of the handle and shoot for 3 or so inches to the blade handle intersection, some put a slight bend in the blade also. this will be your best guess as all oars are different

I would NOT fiberglass a one piece oar unless it is cracked or weak ....water WILL get in and rot it. A one piece will last forever if you take care of it

If there is a metal band on the tip it is probably repairing a split remove and epoxy /fiberglass the tip..

The old Navy oars are great you can take a little off the length and thickness until you get the feel you want then dry it good before painting

Your oar is likely spruce but I have seen them in oak and ash all three will have a different feel. weight/ blade length will also factor in on the feel of the oar

C