Old engineering truism, "If you really want your pants to stay up, then use a belt AND suspenders."
It appears that the consensus is to have zero intentional spawning habitat AND a predator.
In that case, I really think that HSB would make a great predator. Aren't they more adapted to hunt schooling fish (like shad), and therefore be highly effective against small schools of CC fry? (As compared to an ambush predator like LMB.)
