Try to find clear areas mate not necesarily gravel just clear of weed areas (if there are any) if not you could try baiting your spots and letting the fish clear their own area. Bunging it all in a pva bag is definetly a good tactic but not the best because it can very often all pile into the weed not to bee seen by the carp, and it wont be found unless they are on a proper feed. Particles on top off the weed are good becuse theese may replicate the natural food found through out weed beds then all you have to do is present the bait by using a long hooklink so it sits on top of the weed,
Bes