The use of barbless hooks may be the reason for the mouth damage. I dont wont to turn this into a barbed v barbless argument as this has been done over and over again. I personaly believe that a barbed hook causes less damage if it is removed correctly but the may be people on the day ticket water who are not doing this. I am afraid that the conditon of these fish is not isolated to this lake but may day ticket waters that are heavily stocked. The only advice I could give anyone is not to fish the lake and then perhaps they will conisder the fish welfare if it starts to hit them in the pocket.