3 sec (or 10 sec) power would be so much better.
I’m doing WO’s on a 520+ that has (at least) another year of service left in it. The default Garmin WO screen is the only way to see any WO instructions during the WO and I end up having to shuffle between two screens.
Step Avg. Pwr. is great when the step starts and you get the instructional overlay. It’s totally useless after that overlay vanishes and you’re doing the step itself.
3 sec (or 10 sec) power for the win.