Most of them lakes around here, Ohio, are full of pad fields. Most of our lakes here are only 4-6 ft deep though. In the summer months this is precisely how I tackle areas of Pads.
1. On the approach starting 25-40 ft away I cast around the outside lines of the field with small spinner bait.
2. closing in on the pad field I start flipping a 1/4 oz black/blue jig with a short trimmed skirt and a sapphire blue chunk (not threaded on just stuck so it freely moves around). when you flip in let it drop to the bottom then slowly lift it to just below the surface and shake it 5 -6 times and let it drop, they will smash it on the fall, no bite pull out and flip again. this is good for about the first 8-10 ft of the pad field.
3. Once I am on the pad field I flip a nose weight rigged 4.5" FTC tube as a punch style set-up. Use 3/8 to -1/2oz weight and flip it in the deeper pads. This time you let it fall to bottom then just barely move it off the bottom and shake it 5-6 times drop it down repeat 3-4 times no takers re-flip.
The reason I approach this way is the active feeders are located on the pad edges and easy to pick off with spinner bait. If you just roll up to the pads you have spooked a good deal of fish before you even cast once. Using the light jig and free floating chunk does a great job simulating a blue gill sucking off the bottom of the pads and most bass in this area of the pads are looking for bigger meals and this set-up gives them the bulk they are looking for. In the 3rd part of this those bass deep in the pads are generally not actively feeding and more sitting on bottom and resting, putting that tube in their face and shaking it gets you that reaction/ aggression strike. This is how I work the shallow pad fields here in Ohio and it has proven to be very effective through the years. I am sure there are several other approaches but this is the one that works for me.