I got interested in this Locky and decided to make a testing stand so I could match my older springs to get some more use out of them when one went soft
It has worked well but you need to either remove the spring (handy to test a lot of old springs) or remove the kneebar/cuff to test them properly on the stilts
It has three adjustments so I can get an over all idea of the springs bend and if it is softer at the top or middle
Some pics below so if anyone wants to make one it is just some timber, bolts, box section steel and a set of bathroom scales
Jason