I just got a Masterline Deluxe slide loop mainline. Skied it 5 sets and then measured it with 45 lbs ( I know it's says 20kg or 44lbs, but my weights come in 5 lb increments) tension. Here are the measurements:
Good enough for my use and if I decide to use it in our next tournament.
Leon Leonard Stillwater Lake KY - SR Driver SR Judge