Do a few test scans on just one particular transponder MB but with different 'Method /Steps' settings - ie: start off with 1 MHz then 2 MHz up to 4 or 6 MHz and see if the S/N figures alter. I usually get higher S/N figures from my Promax when it is just parked on a particular frequency.
Yes, I think that is the logical way forward re smaller step scans and compare the results.
For those with a slight inclination towards IT tinkering, the entire EBSPro database of all historic scan results for all satellites can be easily exported and opened with a spreadsheet application. The EBSPro database is in SQLite format which can be opened by free SQLite database viewers. This allows reading and exporting of the EBSPro database as a csv file or a text file, both of which can be opened by excel or any other spreadsheet application.
It saves a lot of copying/typing and removes the risk of manual error for anyone wishing to keep/transfer records of their scanning forays from EBSPro into a spreadsheet.