Processed at 8 weeks, they are closer to the grocery store birds. Mine moved around and were firmer. Tough, no. I also do not find the dual purpose tough. The older birds must be cooked on low heat and slow to melt the proteins. Search here and they will tell you the ages. Fryers are the youngest and tender birds. Older birds are tougher and cooking methods change. Old layers become the chicken and dumpling or soup birds. Too tough to fry.
To your question, no they are not tough like the older birds.
To your question, no they are not tough like the older birds.