Yes, that is the correct way to do it. As you said, there is too much dwell at TDC till the crank starts moving the piston down again. To be fair, it was a 60's engine with the bolt on timing tab. Almost all are off in my experience, most not worth worrying about. Unless you are as picky as I am.
You should start a thread for engine builders/machinists/anyone about mistakes or things way out of tolerance you have found or seen. I still remember a couple of doozies.