I have two buddies who bass fish the Arkansas River at Toadsuck just outside Conway all the time. They are 100% bass fishermen only, but they say that every time they go out they see people just killing it around the western park boat launch in the little cove and rock jetty. One guy is a serious tournament fisherman with some expensive electronics on his boat and he says he sees all kinds of fish there when he launches. He doesn't care about chasing anything but the largemouths and covering as much water as he can so I can't speak to his experience crappie jigging it there, but he's always told me I should try that area.