Compounds of いい線

• いい線
  (exp) more or less right
  you are on the right track
  getting warm
• いい線行く
  (exp) to be on the right track
  to go well
• いい線を行く
  (exp) to be on the right track
  to go well
• いい線いってる
  (exp) (col) to be on the right track
  to be close enough