Your lakes, sound just like the lakes (at least the ones I like to fish) here in WNY. I catch more bass out of grass (milfoil mostly) than just about any other type of cover. I can tell you how I fish it in my home lake, but I fish that place 150+ times a year, and have a way of doing things there that works for me, it may not work for you, or it may not work on lake x,y, or z. BUT, if I were to go to a new lake with lots of grass, the first thing I would do is look for an area where the deepest edge of the weeds has some sort of change to it. For example, where it makes a point, or cuts in close to shore, inside and outside bends, etc... I would work the the outside edge of those areas with a lure or bait YOU have confidence in, if you can't pick up any fish on the outside edge, don't pack up and leave the area, start looking for holes and pockets in the weeds, and put a bait in those places. Fish the weeds at multiple water depths, till you find a depth in them that seems to be holding fish, and then concentrate on that depth for a while to see if it's a pattern. Try a couple different things before you determine they are not there. I have had days where you could flip every weed pocket in the lake with a jig, or T-rigged bait and haul water, but drop a senko that falls slow into those same holes and load the boat.........and vice versa. But back to looking for fish............if fishing the outside edge or holes/pockets in the middle of the weed beds are not working, I do one of two things, either go to the bank and fish wood, boat docks, thick matted grass, and any other shore line cover, or go deeper and fish hard cover, like rock piles outside the weedsor, any kind of man made cover, etc.. If your not catching a few in any of these areas, I would question whether or not there are bass in that lake LOL. Grass lake fish can turn on and off with the flick of a switch, alot of whacking them good, or struggling for bites is nothing more than a timing thing. Don't get discouraged if your not plucking them off one after another out of every hole. Fish when the odds are in your favor, during low light times (am, pm, weather changes, windy days) outside or inside edges, or even over the top on reaction baits should (but not always) be a good starting point. And on sunny clam days, the holes, pockets, or matted stuff is the place to be looking first.