The gigots are about 1.5 - 2 kg each, if I remember, the shoulders a tiny bit smaller. The chops are really too small to be worth chopping up, but they make a good crown roast or Valentine chops. There's no scrag end of neck, or really any other cuts - but what there is is really good and so different even compared with Hebridean and Shetland. At 18 months it is usually called hogget, and as landroverroy says, it is a premium product - Soay meat is rarer than the sheep themselves because of the relatively expensive slaughter and butchering costs compared with the amount of meat.