I don't have a davis so not sure how difficult it is on them, But i've had to mess with settings on mine, I can get it close but i still find it ends up a few cents or more off depending on rates.
My tipper and Stratus never exactly match up, The tipper seems to under catch and the stratus ends up more inline with the surrounding CoCoRaHS stations.
I got my 3.65" plus in 90 mins with FFL on 07/27, We've had some other smaller events since as well so we're 2.49" for August.
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Public Information Statement
National Weather Service Gray ME
1053 AM EDT Fri Jul 29 2022
...PRECIPITATION REPORTS...
Location Amount Time/Date Provider
...Maine...
...Androscoggin County...
2 E Lewiston 3.65 in 0830 PM 07/28 Trained Spotter
4 SE Poland 3.50 in 1019 PM 07/28 Trained Spotter
Auburn Lewiston Munici 3.00 in 0830 PM 07/28 AWOS
Sabattus 1.38 in 0857 PM 07/28 Public
1.8 W Lisbon Falls 0.60 in 0700 AM 07/29 COOP
Durham 0.8 S 0.48 in 0800 AM 07/29 COCORAHS
Leeds 0.10 in 0949 AM 07/29 CWOP
Turner 0.10 in 0700 AM 07/29 COOP
Livermore 0.03 in 0946 AM 07/29 CWOP