Hmmm, well here's my conclusion. Take it for what its worth, but i don't want to be responsible for messing anything up. So i'm just going to provide a theory.
If the whole thing lights up, then it shouldn't matter where you cut because you aren't completely severing the indiglo material from the electrical connection, SO it will still light up. If you read the other thread, you'd have noticed that the reason that we had issues deciding where to cut was that the indiglo material would be completely severed from its source, therefore not lighting up.
I would be very very careful with those, mostly because the holes look tiny to begin with.
Be sure you really want to do this. I ended up taking mine off because they shorted out more than they actually worked, and it was a pain in the ass to take out my cluster and plug things back in and get them working. DO NOT FORCE ANYTHING. If it feels like its going to break, it probably will.