OSB's, they are fantastic pigs and no bother, very laid back and lovely characters! I am a relative newbie to Pig Keeping (three years)and have stuck with OSB's having looked at experience by others with Tamworths etc.
Just farrowed my First time with 3 year old sow with a litter of 10, all outdoor in Pig Arks and have had no trouble.
The Meat from OSB is fantastic, to the point that I sell to some foody types (one a michelin starred restauranteer) who rate the OSB as the best Pork ever!!...
I am at Pig Karma at present, in as much as 10 have gone through me to slaughter and 10 newbies have come into the world, plus the two girls I have for creating more wonderful OSB!