Kabopar,
I found drawing a line along the side was easiest, one to two lines did it for me.
my initial scribbling over the top was not necessary :-)
i'd measure the resistance again after, I'd not let it go below 0.84.
you might need the eraser and a couple of attempts to get the right result.
I just picked up my BF from the post office Saturday and finally got around to paging through this thread. This was invaluable in getting my speeds up from 2.1 Gh/s to 2.5 Gh/s.