Max Tow Weight and Rope Strength

Suppose your tow plane has a placard that says "Max Glider or Banner
Weight: 1000 lbs." You are going to tow a glider with a max gross
weight of 1000 pounds. Are you supposed to limit the tensile strength
of the tow rope used to 1000 lbs? The regulation specifies that the
tow rope should be no less than 80 percent and no greater than 200
percent of the max towed weight. This would allow you to use a rope
that has a strength of 2000 pounds but wouldn't that endanger the
towing aircraft which has the placarded 1000 pound limit? Would you
use a weaker tow rope or a weak link or would you just tow the 1000
pound glider with the rated 2000 pound rope?