I'm pretty used to catching carps 30lbs+
You won't find many thirties in the immediate Dallas-Fort Worth area. Some of the lakes in east Texas (Fork comes to mind) give up the occasional thirty, as does Ladybird Lake (Austin), but our summers are too warm for carp to consistently grow that big. You can catch the occasional carp in the upper twenties during the pre-spawn, but low twenties is about the most you can expect around here. Lots of of single-digit fish here, too.