My progression, so far:
Razorgore - pet in 1st attempt
Broodlord - pet in 1st attempt
Chromaggus - 2 attemps, no pet
Skeram - 2 attempts, no pet
Viscidus - pet in 2nd attempt
Twin Emperors - 1 attempt, no pet
Loatheb - pet in 2nd attempt
Gluth - pet in 1st attempt
Maexxna - 1 attempt, no pet
Golemagg - 2 attempts, no pet
Sulfuron - 2 attempts, no pet
Magdamar - 2 attempts, no pet
Is it just me, or is 5 of 12 too much in just 2 weeks?
Does anyone know the exact droprate?
Wowhead.com isn't much help, due to the thousands of kills befor the pets were implemented..