I see no issue with stocking a few hundred as a bonus fish.
No matter what, you have have to take care of the overall food chain, so those efforts never stop, and a few hundred channel cats over 100 acres shouldn't be too much of a drag, IMO.
Excerpt from Robert Crais' "The Monkey's Raincoat:" "She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."
