I'm on level 6 and I feel like i'll be hitting level 7 in the next week or two. I'm looking to add some more challenges to my regiment. I was looking around on the site, and found Intermediate Simplefit.
Has anyone tried the intermediate simplefit? (http://www.simplefit.org/intermediate-b ... cises.html)
I'm looking for some tips on when a good time to switch would be, and what challenges the intermediate brings.