My friends and I fish a small maybe 5 acre pond in between some houses in a nearby neighborhood.  It is very small and very shallow, only 4 to 5 feet at the greatest depth.  It is a rather unremarkable pond with little submergered structure, but it is blanketed with grass mats just below the surface in a large portion of the pond.  We have the patterns down pretty well and have whacked em on everything from senkos to spinnerbaits, but the lunkers seem to be hit or miss.  We know for a fact that they are there; two 15 lbers. have been pulled outa there not to mention the 10 lber. that bassmasterob posted up here recently.  Some days the hawgs with hang around a drain near the dam side of the pond, but most days they are nowhere to be seen or hooked.  The pond also contains a large population of grass carp, bluegill, and a few catfish.  We've gotten pretty good at fishing, but I always get such good responses on BR that I had to put the question to y'all.  Any other suggestions for us?

for your best chance, i'd suggest trying a big buzzbait, walking bait, frog,  chatterbait, or colorado blade spinnerbait at night for the monsters.  

if you are limited to daytime fishing, i'd also try BIG plastic worms and jigs along with the above mentioned topwater baits.  one of those new hollow bodied swimbaits may also be a killer.

of course there is always the good ol' live bream if legal (i think you told me it was there.  matter of fact, any big live bait might get your rod broken there.

3 wt fly fishing setup with a little dry fly....

then use whatever you catch as bait  

Some of the things I would try: 7" Lunker City Fin-S jerkbait on a 7/0 to 11/0 hook twitched just below the surface; 6 inch senko; big waking swimbaits (if I had any).

Good luck!