In the 6 or 7 years that it takes "our" rainbows to attain a respectable weight, "our" brown trout will be double that size in the same time period. Under ideal situations, such as taney, our browns can grow close to 30 pounds in their 12 to 13 year life span. An ideal situation for rainbows is the hatchery raceway, where in that same time period they can attain 18 pounds. Missour raises the "midget" of all rainbow strains. Look at other state records and you will see what I mean. Look at line class records, and you will see that we don't even grow them as big as the smallest fish on the books. The closest thing we have to a friendly enviroment, to grow big rainbows, is taney or the hatchery raceway. Browns are more resouceful and "nomadic". Ha, not even sure that nomadic is a word but a good description for missouri browns. Over the years, JT and I were used to seeing several large rainbows in the trout parks. Those numbers have all been evaporated in the past few years. An 8 to 10 pound rainbow is on the endangered list for sure. Browns are survivors in the wild, whereas rainbows seem to self-destruct. Our big browns grow up out in the enviroment, whereas most rainbows can only grow large in the hatchery. They are "not" survivors.