Out of interest, what does happen to the delta when the values wrap around from 127 back to 0? Do you simply lose one reading? If they go from 125 to 8, you'd lose 10 strikes...
I believe you are asking how weewx handles counters. Hopefully one of the people with direct weewx knowledge can answer that.
Note: counters are a reasonably common data representation. Things like the rain gauges count tips. There aren't infinite bits available so at some point the counter wraps around just like a 4 digit meter (electrical usage, odometer, etc.) that rolls over from 9999 -> 0 or whatever depending on the number of digits it has.
Sure, and the rain counter would appear to go very high, it counts yearly rainfall for example.
However, if the lightning strikes count up to 127, then it can easily go three times round in one night for me, meaning data could be lost.
eg, if the readings were 108, 121 008, 012
there there have been 13, 14, 4 strikes in each reporting period respectively.
However weewx might count that as 13, 0, 4
Just wondering if there was a way to tell weewx what the wraparound point was, so that it could calculate based on that, however probably better to ask in the weewx group.
Just seemed people here knew about the lightning counter in quite some detail

Thanks!