It would be cool if the Siliscale turned a certain color based tension.If you have a Silistrap, you might be able to achieve something similar.
When I have the adjustment clip on the Silistrap about 3/4 of the way the pull is about 6 to 7 lbs based on Siliscale, adjustment clip halfway about 3 to 5 lbs, and if the adjustment clip is fully open I get about 1 to 2 lbs.
Red, yellow, green...
Just a thought.