I've never turned up bass at the spillway off 78 (crossing from wylie into lavon) but I've seen some decent ones pulled out by the dam itself.
There's a few ponds in woodbridge (sachse, the housing development by the new 7/11 off 78 near the walmart) that I have caught some good sized bass out of. Most of the time it's just cats.
Yes... I am a nerd who's slightly obsessed with Zelda - Majora's Mask.. and yes! I do love bass fishing!
....You're gonna carry that weight.