Yeah I would not dig in water either! I would wait till my water level is down far enough from lack of rain then do the digging. Even if I could get it 12 inches deeper around the edges that would be better I think. Like I said I wouldnt do it everywhere I would leave a shallow area for minnows to spawn and hide if need be, but I think I have to much of that right now and not enough of the other.
thx,