I have found that Rapala countdown brown trout imitation lures are the best to use at Brunner, either trolling or casting from the shore. Have had some success fishing off the breakwater in front of the marina, have even caught them casting into where the boats are parked but be careful of the mooring ropes, dont wanna lose those $20 rapalas!
Also went to coleridge a couple of weeks ago, only fished for a couple of hours but landed a nice 4lb rainbow and lost 2 others on a rubber rainbow trout lure. Ended up losing the lure though so will definately be going out to replace it with a few more!!