The rod tapers we use here at Oyster are all designed in-house by us, based on our own trial and error and experience. Before I ever started making rods, I was teaching casting and guiding, so I learned very quickly which of the classic-style tapers I appreciated and which I didn’t. Almost as quickly, IO began to adjust, change, and modify. For us, the taper design is a constant evolution. In fact, we have to pre-print or reprint our book every couple of years because it becomes such a mess of scribbles and adjustments that we can't read the thing anymore. So for us, all of our tapers are unique to us, to Oyster, and this became especially evident when we got into saltwater arena. Historically, There were no saltwater tapers; if you Google “Tarpon taper 1910,” that wasn't really much of a thing. We were totally on our own, building from the ground up. Our Tarpon rod for example, we've gone through five different iterations. Thought we had it nailed on the first one, thought we could make it better on the second one, and we just continued to do that until we got to number five. That's when things finally settled down and that's been the way it is for all of us. We're constantly modifying and adjusting, but all of the tapers are our own. We are not reproducing classic tapers or anything like that.