I guess if you call 30 feet in spots shallow ya its shallow. Tons of structure in Pine. Take a look at the lay of the land around a lake and thats probably what the lake bottom looks like as well. Haven't been this year yet but usually not to hard to find perch and walleye.
Brother was out today and they boated over 80 walleye and caught their limit of perch over 9 inches. Said he fished on the west end, northern half of the lake, he has some honey hole he wont spit out.