I'd hit Lake Placid in late June or early July. The West Branch of the Ausable River has a lot of different types of trout water which would be great to hit with a guide...there are tons around there. There are also a lot of lakes and ponds of different sizes that you could fish on your own for trout or bass. Lake Placid is a great place to base yourself out of because there are a wide range of accomodations from campgrounds to very nice hotels and B&Bs. There are pretty good restaurants and plenty to do outside of fishing.