There are several things to consider about this topic. FACT: Spotted bass are a non-native species, and when non-native species are introduced into a foreign ecosystem they will either not live, or compete with native species for habitat and food. In the case of Keowee, spotted bass do compete with Largemouth for cover and food to an extent. But, it is also known that the two species tend to prefer different types of habitat, both of which are prevalent on Keowee. Due to their genetics, spots are generally more aggressive, and in a deep clear reservoir like lake Keowee they have adapted very well. Biologically, the spotted bass has had a negative impact on the reproductive success of the Largemouth due to the fact that Largemouth are now having to compete for food and spawning grounds in areas that they used to have no competition.
However, there is also another aspect to consider about the introduction and success of spotted bass that may be more positive. I have never learned of any scientific literature that proves this theory but it is my belief that Largemouth have actually benefited to some extent because of spotted bass. Because spots tend to be the higher catch ratio of "todays" anglers, the largemouth population is getting a rest from angling pressure. And for the same reason, those anglers that do keep fish to eat, are more likely to keep a higher percentage of spots.
Now my opinion....I grew up on Keowee and the fishery itself has changed dramatically over the past decade, that is no question. However, those that fished it back in the 90's know that it had it's fair share of rough days. And because of this there were fewer tournaments held on the reservoir. Since the dramatic increase of spotted bass there has been a "dramatic" increase in bass anglers. This is the epitome of a positive correlation between fish and fishermen. I agree with both sides of this argument because I am a fan of spotted bass (It's hard to argue that they have not heightened the fishery) but I also agree that you should do your part to control an non-native invasive species. (ex. Keeping a limit of spots if you want some fish to eat) However, this does not constitute the belief that you should kill every spot you catch? That is irrational and does not work to the benefit of the lake or the fishery. Basically I feel that this lake should be treated in a similar matter of every other lake in the state, obey the laws, that's why they are there...There is never an argument over whether anglers should take all the small bass out of hartwell? Just accept the fact that Keowee is different and use it to your benefit, lots of people would love to have a lake close by that had a majority of spotted bass. If you want to only catch a largemouth and don't feel like looking for them, go to a different lake, don't try and mess Keowee up for everyone else...