RCF
Legend
This is an interesting idea -- Is (or was) graphite inherently fast and thus the best graphite rod makers were making making very fast rods in your view? I suppose it depends on what we mean by best, but the case of something like the Scott G or Winston TMF would indicate that at least by the mid 90s (correct me if I'm wrong), good moderate rods were being made.
I like the idea that Loomis and Sage were using the tech well and that produced fast rods, but I also think it at some point became a conscious design philosophy. Sage and Loomis became identified as specialists in ultrafast rods, that's what their customers liked and looked to them for.
Maybe it was corporate marketing that determined what the customers wanted and would be able to purchase....