Advice from the horses mouth (Obadiah) there Gazmeister,and likewise,I fish Stocks once or twice a week and can vouch for the sound info.Not much more I can add apart from...
Don't let the conditions,whatever they are,put you off. Stocks is full to the brim after all this rain - unheard of in July,and it's bursting with fish. However,as Obadiah said,conditions can change 3 or 4 times a day and can make things tricky,but there is always a bay or an island or drift that will suit the conditions and suit the fish...you just have to find it... and then a method that suits. Even through all this low pressure and constant change the fish have been well up the vast majority of the time and are just itching to rise... pick yer moment for stuff like hoppers and shipmans.
Get yer boat booked and have fun. Great venue,great staff and quality fish.