I must say, of all the variations I have tried, MyBot's milking method has been the most consistent. At times it has been fantastic, and other times it has been ok but it is always in the positive with very few resources expended. If you are struggling as a TH11 I strongly urge you to check this out. All the credit should go to the Dev in the provided link.
I must admit, I haven't tried the latest BoostBot or Raccoon bot, but mainly because I've been progressing well enough with the below bot.
Let me know what you think!