I like Midwesterners. Canyon Ferry can be tough but it sounds like it is fishable at the moment at Silos Marina so maybe start there. Close to shore 5-15' of water seems best if you are looking for big rainbows, and 25-40' for perch. It can be a tough lake to fish, but swing into the Silos KOA and buy some tackle with their advice, they are always friendly and will know how the fishing has been. Make sure to check thickness as you go out, I doubt it is safe all the way out yet. Good luck