You're not too far from Don Pedro right? There's a place down there called Shammut Roadwhere I do really well on the larger model cats at night when I'm visiting family in Sonora. Use chicken livers and garlic salt on like 15 lb. Between myself, my brother, and my dad I bet we've had 6-8 fish in the 8 pound range with alot of the smaller 5 pounders. I don't have exact directions but just ask around and I'm sure you could find it.

Jake