Dont know why this came to mind, guess its my 40 year old memeories catching up with my 71 year old brain. Back in the day when I could barely spell 1A2 i was working on a job somewhere and we were gonna run some circuits on a feed going to another building but pairs were short.The lead man surmised that we could just make it if we eliminated the LGs and A1s and picked up the ground in the other building.His theory was the old adage " Grounds ground the world around". I dont remember if it worked.Anyone know if it would. This was back in the early interconnect days where we only had to get it to work once.