Decent Light Sussex are few and far between.All the utility breeds have had the 'utility' bred out of them by indiscriminate breeders just putting breeding pens of birds together and thinking they are quality.
It takes 30 weeks at least to get any meat on a LS and then you have it all on the legs and hardly any white meat.
Get your self some good quality Australorps L/F.This breed holds the unbeaten laying record of any fowl including commercial hybrids.
Cocks dress out at around 7/8 lb around the same as LS, but at least this breed still has some dedicated breeders looking to keep the superb laying ability of the strains