Problem with modified rain gauge and datalogger WS2310

I have modified the rain gauge at the WS2300 and I have selected this option on WD:

on Station Setup I have selected: I am using a modified Rain Guage
on Offeset/… I have insert the new calibration (0.5)

Good, when WD loaded the data from the datalogger write the tip at 0.518 mm (error) while, in normal execution, it works regularly

I would have to select other options?

Best regards

ah,oh,ok…
so I am not using that modified rain guage tip setting in the history data at start up…?
I will need to fix that…
(just camping with the family at the moment (summer holidays here, just home to catch up things for a few minutes))

Yes, only at the stat up