I suggest testing developers with small format films, even with just a snip or full rolls, as the higher enlargement ratios will reveal greater information during enlargement of what is happening on your film...
Find image characteristics that you like, and then try your sheet film...
I also make my developers from scratch, and the series of tests and developers made a huge jump in the quality of my negs... But it started from 35mm snip tests...
Steve K
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