We recommend turbo tape , turbo rope or turbo wire. The TURBO family has a 46 x higher conductivity of the polywire and is stronger. They do cost more , but they are much more effective.
Turbo Tape Cat 62454 1.5" wide 15 alloy strands super conductivie 200m roll
Turbo Rope Cat 62254 9 super conductive alloy strands
200m roll
Turbo wire Cat 62054 9 super conductive alloy strands
200m roll
