There are several types of valve extenders.
I used about 1" long extenders when short valve would hide behind inner rim, making it accessible for the chuck. The good ones have smooth cap, that keeps dirt away.
Don't use any hose extenders, as those are often source of leaks and I lost a tire to one of those dually equalizers.
When I like the idea of equalizers, with a gauge with color indication, I would hesitate to use them without TPMS.
I like to air my tires at home not only for the convenience, but also to avoid water some of the service hoses will dump into your tires.
I have oilless compressor at home, what give good air, but is slow with 1 gallon tank.
So my best way is to set the regulator to desire pressure, lock the chuck on the valve and go to other tasks.
After few minutes I move the chuck to other tire and go to other tasks again.
This way I have no surprises down the road.
