This is what I am doing. As I said it does not change the order of the signals at the connectors. Only at the cables.
At the first IDC the order is
VPP, VDD, GND. PGC, PGD
after the wires leave the connector they become
PGD VDD GND PGC VPP
Just prior to the other connector they move back to
VPP, VDD, GND. PGC, PGD
OR
9 10 3 4 5 6 7 8 1 2
1 2 3 4 5 6 7 8 9 10
...
1 2 3 4 5 6 7 8 9 10
9 10 3 4 5 6 7 8 1 2
I make a slit between the 2 and 3 wire and the 8 and 9 wire
The 1 2 wires are moved to where the 9 10 wires were and
the 9 10 take the place of the 1 2 wires. This is done on both ends.
The process of moving wires in this way has been used in PC floppy drive cables for years. Nothing strange.
Look at the picture, neither the Junebug or the target has been changed to take the new cable. Better yet it is WORKING with a 35 inch cable