You still looking for a percussion gun?
You will get real grief if you try to shoot it at the club where I know you from, I did. but the look on one blokes face when he nearly messed himself was well worth it. The guys there complain about the noise. The Farnley shoot is also unipressed. He says that it is a noise problerm too, but the odd shot was ok last time I asked.
A group of lads do shoot in a comp at the boar though, and you can take one to park lodge, or that posh spot near skipton.
As to your original questions when I first started ML shotgun i used regular fibre wads, but then moved on to cutting my own from underfelt.
Load goes as follows 1 powder, 2 over powder hard card(cut from v. hard packing card), 3 wad ( either bought or cut), 4 shot, 5 over popwder card ( either bought or cut from a beermat). 6 Cap (whatever fits your nipple, no smutty coments), 7 BIG BOOM, 8 BIG and I mean BIG Grin.
Call me if you need any mor hepl Dave.