Fished it for 30 years and never ever seen any problems of any kind so I don't know where the problem story arose. Some cracking silver fish lakes and a carp lake with lots of 20's if that's what you like. Never gets crowded, permit also gives access to 150 pegs on the S Y Canal, plus another pond, Baker's and some good double figure figure barbel fishing on the Don.
Can't beat it for the money.