Thank you,
today I found another strange thing.
I did a lunch ride, approx 21k in nasty weather (rain and wind the blew in the middle section from front left)
did half the loop yesterday and used more power based on pp than today with nastier weather and over a longer time in these conditions.
(I can understand that bursting 11k gives more than 21k, but the speed against the wind was nearly same)
I had a look at the ride file afterwards and found the following:
Start and end of ride show an increased amount of power. End of ride shows 4000km/h
Now from before discussion I understand the starting, and could imagine the end (I hang my bike upright on the wall, but stopped the activity on garmin before)
looking at the calibration check we can see that it says 'Noticeable Change' with Power changing from 195 to 201W.
Accepting the changes also shows a change of the wind in the middle section where I had nasty wind from left front.
If I try to send the new calibration to the device I get the known error, based on the values at the beginning and end:
I did cut off the start and end of the file and also defined that it is not a out and in ride, since I passed my starting spot in 700m distance when I reached half of the loop. (Even it is an in and out ride, but the ride is in the middle there where Isaac expects the end, see the annotations in the above screenshots), I also changed the elevation of the start and endpoint manually from 170m to 5m above sealevel:
we can see the values that all change and make the whole ride more accurate.
But we can also see, that the PP misunderstands/misinterprets the IN/OUT ride, since he takes my starting point to the first turning point as OUT-ride and then the distance to the 2nd turning point he defines as 'IN end at halfway to 2nd turn' when passing starting point in a distance of 700m to the east.
After this has been done, the wind in the middle segment changed again and the used power also changed:
As we can see in the Calibration check, the change is moderate:
but then if I try to send this calibration to the device, with start and end cut off, I get this error:
what am I missing?
please find the original file and the changed attached.