I used the real thin stuff that showed a pic of a circuit board and found it pretty difficult to see it flow. If you have a staionary magnifying glass, it might be doable with the thin solder. The points to solder are much smaller than they appear in the pics so you might want to see the area you're working with first. I hope I don't have to do this again, but if I did, I'd go with a bit thicker solder.