What about Gradient Lag?

Apparently, as per some other forum members, the barometric sensor was changed - on the 1030+, 1040, 830, 530 etc.  And that is the reason.

However, this is probably considered “corporate / trademark secrets” and it’s unlikely anyone at head office will openly declare this proprietary info openly. They simply reply: ‘10-15-20 second lag for gradient reporting is normal’!!

Basically - ‘Too bad, so sad’, for us. 

It is NOT normal . Recreational doesn’t mean useless as it is now and considering the selling  price, it should be a “bit” more than recreational  by the way and we are talking about one problem out of other dozens that still need to be fixed.  

As far as I know, Garmin uses Bosch barometric sensors.
Each new type is more sensitive than its predecessor.
That should not be the problem...

Maybe aweatherall knows more about the used type.

https://www.bosch-sensortec.com/products/environmental-sensors/pressure-sensors/

(Edge 1030 has the Bosch BMP380 built in)

Correct, it “*should* not be the problem”. 

Unfortunately, seems all the aforementioned units have the new “upgraded” sensor. Which “should” theoretically be better … but unfortunately, is not, and is actually much worse..

Wouldn’t be the first and only time in the world that a newly upgraded model of technology device was actually worse than its outgoing predecessor. 

I am sure this will be solved in the exact same way as with the 1030+ - after months of promising to look into it garmin will say it's within spec and they aren't planing on doing anything about it.

lets see

https://www.youtube.com/watch?v=r1q8Y2_DwtY&ab_channel=ShaneMiller-GPLama

Gplama addressed this problem over his YouTube channel 

Thanks for the info. You got my attention with "addressed," "mentioned" would have been my choice. It will expose it to a wider audience than find their way to these forums. 

If you pay attention , YouTube movie is called "Edge 1040 Issue Tracking" , that means that Gplama find same "problems" and reported back to Garmin 

But this does not matters , only mention for the problems , that are real , maybe will wake up Garmin 

Its nothing to do with the GPS, thats just for map & location which is very much better on the 1040, the issue is the barometer or rather the filtering of the data thats coming from it.

of course it does nothing to do with GPS, I had in the past devices that did not had ANY GPS , and percentage dispayed was spot on!

My feeling is that Filtering and calculation is done every 20-30 seconds, depending on the climb to save battery 

This of course its only an assumption 

And yes, track is way better than any device that I had , for example 830 is bad compared with 1040 , that is almost perfect