What's the difference between a Hex Core Lo-Rider and a Hi-Beam? Recently, I stopped using Medium-Lite Round Core Lo-Riders in favor of Medium Hex Core Lo-Riders. Which caused me to ponder the aforementioned question. In a similar but unrelated scenario, I e-mailed DR about the difference between a Fat Beam and a Lo-Rider (Fat Beam's also have round cores). Their response was something along the lines of "the Fat Beam is more like a hybrid between a Lo-Rider and Hi-Beam." How does that work if it has the same core as a Lo-Rider? (All 3 of these strings are steel plated, I believe).