But once I started to use this retrieve, it seemed so natural. It added a flow, a rhythm to the fly’s movement that I soon became addicted to. And it was not long before I retrieved with both hands almost exclusively. I suppose you could say the two-handed retrieve became my trademark. One of the major criticisms of this method concerned hooking fish — most anglers thought it would not work on many species, and certainly not on difficult-to-hook fish like tarpon. At the time, I had little experience fishing for tarpon and hoped to have a chance to prove that this method would work on this challenging game fish. In the early ’70s, I got my opportunity. I had a lot of confidence in this retrieve. On a trip to Costa Rica, I put it to the test. Hooking jungle-river tarpon is trial by fire because you are casting a long line and then fishing a sinking line well below the surface, and often there is a bow in the line. Most tarpon guides in other areas like to limit casting distance to 50 feet and prefer a straight line to the fish. In six days of fishing, I thought my hooking success was very good on river tarpon — I landed seven or eight, dropped perhaps the same number and broke off four. The fish ranged from 50 to 90 pounds. I had better success than most. It was not a hot fishing week for anyone by Casa Mar standards, but there was enough action to prove how well a two-handed retrieve worked. On a later trip, fishing for tarpon in Mexico, I hooked and landed five fish in one day. I had about a 70 percent hooking-landing ratio on tarpon. The fish were smaller, 20 to 40 pounds, but again, the hooking effectiveness was excellent.