Level of Fulfillment: Learning to fly fish can be challenging, yet I haven't met an angler who developed the basic foundation of skill and knowledge required to be successful at fly fishing, who then went back to preferring conventional fishing and didn't find fly fishing more rewarding and productive in terms of number of fish to the net. Productivity: In addition to the level of fulfillment, there are also more options and a higher level of realism to your presentations. Conventional fishermen are unable to "match the hatch" by throwing small realistic flies to feeding fish. Due to the laws of physics, fly fishing enables you to make a realistic presentation of a small insect or aquatic life that would be impossible with a spinning rod due to the requirement of having a heavily weighted tackle to cast. Trout are very selective, you may fool a fish or two with that shiny hunk of metal, but usually when the trout sense that heavy splash from your tackle, you won't be fooling them anytime soon. Fish Mortality and Access to Protected Waters: Many of the best trout waters in the United States are restricted to artificial flies, and single barbless hooks, some are open only to fly fishing. This is due to the increased fish mortality that comes from conventional fishing practices, such as treble hooks, and retaining fish.