I actually saw tons of bass and bluegill at Twin this spring in the shallows. You may not have been shallow enough. I did much better after I ditched my float tube and waded the shallows on foot. The first day I fished it this year in mid May, I caught 50 bass in 3-4 hours. When I went back toward the end of June, I caught 50 more bass, and there were bluegill absolutely everywhere. I saw many in the 8-10" class.
The fishing was very different this year at all the waters in the area. The cold, unstable weather along with the super high water everywhere definitely changed things up. Judging by the hordes of bass and panfish fry in the shallows of every reservoir in the area this year, I think they had a pretty good spawn.
Catmaster, that's an awesome bass. How big was it? I haven't caught any that big out of Condie, but here are some at 18". There are definitely still some in there.




Here is the 19" I caught, but as I mentioned before, it didn't look healthy. I bet it was a really nice looking fish at one point though.
As far as largemouth and smallmouth doing poorly together, while that may be the case in a small western reservoir like Condie, they do very well together back east where I grew up. They often kind of take up different niches in the body of water, but other times you will find them in the same areas. I wouldn't worry about the smallmouth out competing the largemouth at Condie though. The fry need different things for optimal recruitment. Condie just doesn't offer the right habitat. I didn't even catch any there this year either, and I put a lot of hours into that place.
http://gregsfishinglog.blogspot.com/