A833 Rebuild Help

Hope everyone is having a great weekend. I’ve decided to try my hand at rebuilding an a833. I’m equipped with the Passon book, service manual, YouTube, etc. So far, not bad.

Big question at the moment:
Can you help me gauge what good/bad synchro teeth look like? So far, on the 3-4 set, i don’t think I’m seeing anything terrible. For the slightly rounded teeth, can I use a file to get the point back? Thought I read that some take a dremel..that seems risky for a first attempt.

Attached are some pictures, I circled the teeth that I thought looked the worst.

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