A mix of usually two of the following: Wagg optimum, p@h nuggets, Burgess with blackcurrants & oregano and a little bit of p@h muesli mixed in once a day to keep the selective feeders happy. Science selective if it is on discount.
The Tribe went collectively off Burgess excel over a year ago. I find that a changing mix keeps everypig happy and helps to integrate any newbies better. It is also a lot less stressful in case the shop's run out of a special brand again and I have to bridge the time until an internet delivery arrives (not helped by the fact that we are in a slow post area!)