You may want to take a read of the post I just put out there in my series of posts about Bid Bots and more importantly the referenced posts, as they go into all the maths.
ref:
https://steemit.com/testing/@jackmiller/bots-facts-and-figures-part-three
All in all, it pretty much confirms what you have said in many ways, without any of the unfounded "opinions".
Thanks for sharing that link @jackmiller