i personally do not know any spots there but when catfishing all i do is bank fish i might use a boat to get from point a to b but i am strictly a bank catfishermen
for flatheads i use no smaller than a ambassadeur 6500on a 10 foot trophy cat rod and 30 pound cajun red 7/0 to 10/0 kahle hooks and a power swivel with a 2 foot leader no roll sinkers and usually baited with live bluegill....and really do quite well i usually cast a few deep but most within 4 to 8 feet of water mostly really close to structure and or the bank
as far as channel cats you can use as small as a zebco 33 from wally world with an assortment of baits from chicken beef or pork liver or fatty chicken cut up into pieces and soaked in cool aid powder over night . hot dogs or those stinky prepared baits from the store channel cats are not picky but usually what alot of people target when looking for good eating catfish in my book as far as wanting a good eating fish that fights like crazy nothing beats a channel cat pound for pound
and as far as blue cats racn and stonewall are great blue catfishermen maybe they could help there hope i was to some help atleast and if you need anything else just ask