I'd always favored the DR strings because they preserve the their tone the longest of any other string until now. These strings seem to be equivalent in preserving the natural guitar sound AND seem to stretch better and return to pitch. Recommended to me by a friend who David Grissom (his friend) introduced them to. If D.G. likes them, I figured they were worth a try. My first couple sets came free, from my Memphis connection, and I've been using the original strings for weeks, or months now and they still sound sweet. Highly recommend these revolutionary strings to anyone with multiple guitars that need them to last longer to keep the quality of tone high and the expense of feeding the herd low.