Those charts are not even close to accurate unfort. I won't be renting my rigs using this service util the charts are fixed or removed. They are much too easy to misunderstand and cause nothing but support nightmares.
I've yet to have any complaints regarding them:
https://www.betarigs.com/rig/2810I would like to see a more strict guideline for high quality rigs. As opposed to at least five feebacks
with at least a 9 rating, I think it should be:
At least 50 feedback [possibly 75]
At least 9.5 [possibly 9.75]
As it stands, it doesn't really filter much.