If you want big brookies you should use large streamers trolling (your best bet) or casting the shoreline, or if you don't like trolling, try dragon fly nymphs, some damsels and large leeches. Take a clear intermediate, full sinker and a floater. The streamers will produce if you are on a good lake. Most people don't like giving up spots but the you can't go wrong if you hit lakes at the end of big/long portages! Any of the bigger lakes northwest off Opeongo will be good. For colours I like perch and gold coloured streamers but if they are around they will hit natural too. You'll also pick up some lakers - probably 5-1 lakers to brookies. Good Luck, moonman.