1) It is hard to get exactly three times around within a chulya, so should I get closer to two or four? If I only have 2.5 times around is that kosher? 2) The shamashim (2 white and 2 blue) are a half foot longer than my other strings which are 2/3 of the length, can I cut the shamashim shorter halachically? Is it bad for for the strings to be cut? 3)How close should the 1st knot be to the beged?