Alun
Tactics for fishing plaice on the shambles are drift fishing with the same kind of gear you would fish with from Poole, perhaps slightly heavier as you will need a little more lead there to combat the larger tides. 12lb class rod or slightly less is ideal, matched that with a 6000 sized multiplier perfek. Beads, rauto or delta type spoons, booby beads all wok on there day. You will also need a nice big bait which can consist of rag, lug, squid and crab in cocktails of your choosing.
To get the drift speed right most boats drag a weight of some description to slow them down. I use a fold up anchor already tripped ie: tied on at the bottom with a length of chain attached. This slows me enough to keep the baits in the fishy zone
You can also catch other species whilst drifting. The shambles is renowned for Brill, Turbot and Bass. A couple of years ago a club member caught a 16lb cod whilst drifting for plaice but then his nickname was the codfather (not the one registered in our forum).
If you have never fished this area before it is an excting venue, well worth a visit.
Martin