Hood doesn't latch 58-59

[dunce79]

I did some searching but didn't really come up with an answer. I have an original latch and plate in my hood but having trouble getting the hood to latch. Safety catch is good but it doesn't always catch to stay down. What are some things to look for? It kind of looks like there's a groove worn into the primary catch. I tried a another plate from a spare hood, seemed better for awhile but problem is back. My latch still has the spring and it seems to work correctly. Almost like I can't get the hood down far enough to catch all the time. Should I shim the plate some?