So, boredom and thinking resulted in some screwing around...I got the following...
Car battery on a trickle charger as supply
single strand of the test wire was used and can be seen hanging (the pen is hanging on it)
No free time was given between loading... started with cca, then ofc silver, then ofc
CCA-
3.44a to 3.55a allowed to pass
start voltage at battery during test 12.58v
voltage at end of test wire (voltage drop) 2.6v
Circuits total draw required for full illumination (6.4a)
OFC SILVER PLATED -
3.56a to 3.63a allowed to pass
start voltage at battery during test 12.55v
Voltage at end of test wire (voltage drop) 4.5v
circuits total draw required for full illumination (6.3a)
OFC-
4.54a to 4.6a allowed to pass
start voltage at battery during test 12.48v
voltage at end of test wire (voltage Drop) 6.2v
circuits total draw required for full illumination (6.4a)