I recall in a previous post you said you weren't using the grounding wire from the harness. What happens if you connect that wire to the sled?

Anyone with better knowledge of empeg wiring - is this a really bad idea? It sounds like he's not getting a good connection between the empeg and the sled, and moving it restores the ground to the sled. (I'm still suspicious of electro-chemistry degrading that point of contact.)

-jk