~WBF
Thecallofthewildanswered1989-2017[PAID IN FULL!]
There is a good example of 'levelling' with springboards close to the ground. There is one in the link above where only one guy needed one.
https://rephaim23.files.wordpress.com/2012/11/giantfirtacomalumberco-wa.jpg
https://rephaim23.files.wordpress.com/2012/11/giantfirtacomalumberco-wa.jpg