It would be very useful if you could filter your best efforts to get a true reflection of power, best times etc.

I’m fortunate to live where there is a 25km climb called Jebel Jais. It’s pretty much 6% constant and a pristine road. And there is a 1-3% 10km lead in to it. 

the downside is my best times over distance are skewed as you can average 50km/h going down 35km of road without putting in a huge effort.

also from time to time when entering a race or in a big group you can go around a 50-100km ride at higher speeds

being able to filter efforts would help understanding your performance.

an example might be to check for the best power over a certain distance with 0 elevation

or best speed over a certain distance at a minimum power number.