Depth is going to be different each time because Stave is really a resevoir and it depends on how much water they've let out. We can have water right at the edge of the lot at the cabin one week, and two weeks later you might have to drive out 1/4 to 1/2 a mile through the gravel and snags to launch the boat. Best method I have found for finding your depth to fish is to troll your route without the gear in the water and keep an eye on the sounder. Then try your gear at 10 feet above the shallowest point you monitored. Make a few rounds and if nothing hits it, keep bringing it up in 5 foot increments until you find them. Of course if you see any lunkers on the sounder, go right to that depth and try.
Anyways, that's how I go about it. My brother does better and goes most weekends, whereas I live on the sunshine coast and might only get up there once or twice a year. Alligator point is another spot to fish and is good for some big rainbows.