The homeworx nodes I've worked on only had the screw in test probe that was completly unreliable so they always put a 23 value tap on one of the legs to use as a testpoint. Would make more sense to me to use a 20 so all the testpoints in the actives downstream match but thats just me.
This is CABL.com posting #340846. Tiny Link: cabl.co/mbAPG