צומת הגידין is a serious issue of טריפות "Treifus".
Empire, Meal Mart / Alle, Malchus, etc are all processed at the same plant that raises their own poultry. There are צומת הגידין issues.
The best shoichet can't make a treif chicken kosher.
Kiryas Joel, Dave Elliot, Agri Star, Aarons, Marvid etc don't raise their own poultry.
Most poultry plants get their live poultry from various growers. When they find an issue with "tzomes-hagidin", they use different growers that don't have the problem.
One processor (Empire/Mealmart/Alle/Malchus) raises their own poultry, when there is a problem with "tzomes hagidin" they don't have the option of using other growers.
End result- may have serious Kashrus issues.
Your options / choices are therefore limited!
WHY?, The Satmar (Zalman Leib's) & the Volover use the Alle/Empire poultry even though there are other processors that don't have these serious issues.