I fish both, although I have done best in the North Lake. I like to fish the East end of the Canal between the 2 lakes. In the early summer, I have done very well there on smb. Non are monsters but there are times when there are lots of fish that are very cooperative on the small jigs. My fav. is a gold gitzit w/ red flake. Did you fish there last year? I did not do very well at Haiwee last year for lmb, I fished hard and caught 1 small fish. I spoke to a lot of other anglers as well who fished there and did not catch many lmb either. I only heard of 1 fisherman who said that he caught multiple fish and he was in the flooded timber using large brown tube baits tight against the trees. I went to the same place and threw the kitchen sink at them and caught 1 little one. I had a client come in today who said that they fished it all day last Sunday and didn't get a single hit, but late in the day a different person showed up and was throwing large white jigs and caught several nice sized smb. I think that he was fishing the south end of the North lake in the boulders. I think this year, I will fish Isabella a lot more as I did a LOT better there last year. Caught (accidentally) a 7lb. lmb and believe that this year will be a very good year there. There seems to be more bait than in years past, and the crawdad population last year was larger than I have ever seen it in years past. Should be a great year!