Word of caution regarding the Duo-Shi pedal spindles, I've essentially worn out the spindles in a couple of seasons. The spindles are supposedly hardened steel, but mine sure don't seem that hard. Most of the load from the pedal body is transmitted to the spindle via a bushing. The bushings eventually wear out and are part of a rebuild kit. After a couple rebuilds, the spindles became significantly worn enough to introduce play. I'm still using them, but they've since been taken off my main road bike and to a lesser-ridden bike.

I am a high-mileage rider, so YMMV vary with the longevity of these pedals. So far in my experience with power meter pedals, I've been 0/2 for a long term solution. The other pedals I've used are Garmin Rally XC pedals on my gravel bike, which are pretty crappy IMO. Nowadays, I stick with spider or crank-arm based power meters. I've had multiple 4iiii power meters across various bikes, only 1 issue with power drops and they replaced it no questions asked. 4iiii did a dual-power meter retrofit on the DA9200 crank arms on my main road bike, so they will do a retrofit.