Rate Quote advise needed for Steel loads by the CWT

I have been approached by a Steel customer that wants me to quote rates on lanes by the CWT. The lanes needing quoted have "pre-set" weights for each shipment. Also, many of the customer's shipments are coming from the same location, and going to the same destination- same material- just different weights (no OD).
It is the norm with a lot of my produce customers to have CWT loads, along with bag/box rates, which of course is guided by the weight limits per each truck going in to load. So how do you "fairly" go about quoting CWT rates on "fixed" steel loads to keep the carrier happy, along with the customer.??

 

You did read it correct the second time around PSUMoose, and THAT is my dilemma LOL !! Now if we were back in the days of Tariffs of course it would be a no brainer, as that is how it worked. For "todays" trucking, their quote process (unless I am missing something) really has no gain.
Now, if they are in fact out for the "better good of the carrier", that's great in my view, however if so how would one go forward without "tariff" info when we are working in a spot market era? Along with the norm of shippers, "haul more for free" thinking!!
I have always agreed with the ways of the old "regulated" ways with rating certain freight/class= weight, min length of haul, commodity, area, etc. Especially pointing out the weight, min length of haul, along with high value cargo area!!

So what it's worth, thanks much for trying to help out , I am hoping that I can find someone that has "todays" working knowledge of this situation, they are a large customer with a great volume of daily freight that I would like to start hauling, however, I do not want to be the one that goes in uniformed with rates that become "cut rates" and ruin it for any other carrier pulling for them.