I would recommend creating a spread sheet that has the manual readings in one column and the La Crosse readings in another. You can then create a tweak in the spreadsheet and chart the two at the same time (manual readings versus tweaked).
--- In firstname.lastname@example.org, "combs1@..." <combs1@...> wrote:
> I'm looking to tweak my reported rain fall reading. I have a CoCoRaHS manual dump rain gauge and a wireless auto dump gauge that came with my Lacross weather station. I wanted to know if I change the rainfall Coefficients(multipliers) from 1.0000 to some other number would it bring the reading into the more accurate reading of my manual gauge. If yes how would I go about finding that number.