I don't know about you but I had always found that the hardest part of rigging (at least for me anyway) was trying to get a pretty good sized line through a tiny hole. What I do now is to take a small amount of crazy glue for wood and leather (or any CA glue) on the end of the line then wiping the excess off with my fingers (yes it does make the end of your first finger and thumb a bit crusty). When nice and dry I cut the very tip of the line on an angle taking the line almost to a sharp point. I found that it allows me to grab the line with my tweezers and get it through the block very easily. Works for me anyway.