Went to Waxahachie first thing Sunday morning. Lots of bites by the dam with a baby brush hog watermelon red. You could tell they were all small and finally brought in 2 of them. Went clockwise a little ways to what looked like an old boat ramp (with a drainage pipe next to it), caught 4 1 pounders there on a zoom trick worm in green pumpkin Texas rigged. Had fun but just gave up while I was ahead, didn't have any confidence in catching anything bigger.
I think the old boat ramp you refer to is the point where old howard road crossed the lake prior to the lake being dammed up. The first ramp entrance is where Old Howard road ran "thru the lake". I think. There still might be a visible hump on your finder when cross over it.
The last time I fished it in a boat, there were lots of large sunfish along the dam that would make you think you were about to catch the lake bass record. I would bring in a 10-11 sunfish.