In the absence of a solid solution to the problems of predators I am all for every possible solution including less popular ones. I oversee a property where we trap aggressively and support excellent habitat and yes we see very good numbers there. I manage another where the owners do nothing trapping related but have an expanse of dense habitat and they still have incredible numbers. A nearby property that has everything in order management wise but has constant declining numbers. The only factor I see there that I do not elsewhere is the 8 to 10 guys that hunt it hunt early, hunt hard and kill everything that gobbles early then they are out stomping thru everything trying to scare up a bird or are hunting the property lines trying to pull a bird off the neighbors. This is a bigger factor than many of you do not want to accept.
Let me add that turkey mating is not a simple task. I raise heritage turkeys and maintain a breeder flock. Experienced birds can complete the act with relative ease but know that there is no penetration but anus to anus contact is required. Stop and look at all that lies in the way! Tail feathers the hen must move aside at the right time, many less controllable vent feathers as well as grass, weeds and more can interfere. Lessor experienced hens can and do make this more difficult. Jakes or inexperienced males truly struggle to get timing and aim together causing hens to become anxious or impatient. High strung males may dance on the hens back causing her to not be positioned right or to attempt to get away, this is where spurred males can injure a hen causing infections that prevent nesting or kill the hen. Subordinate males will even ejaculate on the hens back rather than complete the task if he is rushed or stressed. As in many species males do not reach sexual maturity as early as females and if a flock is left with late hatched males many hens could go without being bred. Finally if a hen does manage to nest and have fertile eggs under her, she will lock down on that nest the last 10 days. Her desire to complete incubation is so strong that she will sit tight when faced with certain death by predators and farm equipment when this happens we lose both hen and nest.
Finally never ever "look" for a nest!!! If you approach a nest a predator will most likely track your scent into that nest and it will be destroyed within a couple days!
In close, MATURE males are required for a successful nesting season!
HABITAT is required for a successful flock
Predator CONTROL is required for large productive flocks.
We have to make stew here folks not just soup.