Frank,
I strongly suggest that you have one of your favorite pieces of film drum scanned by a competent scanner operator and use that as your benchmark. You'll have a direct comparison then and one that you control fully. Otherwise you won't know for sure if the film was exposed correctly, the camera was focused properly, the tripod and camera were locked down, the processing was good, or any number of variables that can be introduced after that in the scanning and digital processing stages.
You'll learn lots more from a high quality drum scan of your familiar film than looking at any number of other people's results. Those results will contain the marks of all their skill and/or lack of skill in the use of their scanner and post processing. How would you ever compare in a way that eliminated all the variables? The obvious answer is that you can't.
Go dig out that great negative that you can barely stand to let anyone else touch and have a great scan made. It'll be a great touchstone for your scanning education and a wonderful way to get fine prints from your very own favorite negative or transparency.
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