Harringtons is 17% protein and 0.8% calcium so still not great, Burgess is 17% and 0.9%. Lots of the commercial dry mixes have high protein and calcium and are full of bad ingredients like mollasses, soya and grains. Best food out there is Vitakraft Emotion Prebiotic from Zooplus but it is difficult to get some pigs to eat it. Is a minefield, I am putting together a spreadsheet at the mo with all the good and bad points.