In my experience, most hali's are caught on spreader bars with herring/octopus etc.
Georges bank is a pretty solid spot. We've had our best luck there on the south east area of the bank. 50 43.856 N by 126 59.038 W -- that is a spot i just pulled off a chart so you can see which area i'm talking about. but don't get me wrong, people get them all over the bank.
if the weather isn't permitting, there are a few more protected spots. if the tides are slow enough, you can fish around white cliff. if not, then there are loads of little spots around. anywhere on a chart that looks somewhat flat will probably be holding halibut. last year, we got blown in off of Georges, so we went into double bay where we could hide, and got a few up to 30 poudns or so. before then, i've never really considered fishing halibut there.
I'm not sure how well you know the area, so white cliffs is a small group of islands just north of swanson island. as for double bay, we were fishing around 50 35.755 N by 126 46.071 W.
around malcolm island, we've got them in all sorts of places. mitchell bay is a good place to try. along the backside of malcolm, from donogal head to the next point up (which is nameless, and often called point no point) , seems to be best from 200-300' of water.
anyways, good luck to you, let me know if you have any questions
Thanks Captain Dudds