I've fished Naseby for over 20 years and it was a water where when the fish are "on" everyone caught 27 fish all aroun the lake. There will still be the odd angler who will get a good score. I know the bailiffs who walk all round the lake have said that the numbers are not there or showing as they used to. The fish use to boil at the top end when disturbed now there's just som that remain in that area. The arm is also the preferred area from Spring through to Autumn but it's got nothing in it this year. I haven't seen any otters or dead fish either. its defo not the water it used to be.