Here is the potty training schedule we followed when Nola was a puppy:
1) 90 second rule:
a) Take pup outside on a leash to the exact same spot, be prepared by having very very special food treats in your pocket.
b) When you get to the potty place, stand still and make no eye contact and say nothing. Canine has 90 seconds to pee and/or poop. If canine eliminates, reward immediately and let it off the leash to play.
c) If nothing occurs after 90 seconds, go back inside the home and crate the canine. Crating after a no response is not punishment, its decreasing the ability of the canine using the home as a bathroom. Wait 20-30 minutes and return outside.
2) Timing of trips outside:
a) Immediately if the canine wakes up from a nap or when you arrive home.
b) 15-20 minutes after a meal or a large consumption of water or a play session.
c) Every 45 minutes excluding the above mentioned situations.
3) Increase supervision:
a) Canine is stationed on a 4 foot leash under supervision or dragging a 6 foot leash around that can be used to escort the canine outside.
b) When canine has an accident in the home, never never ever punish the animal. If you want, you can hit yourself with a newspaper. Through training, canines learn to eliminate in specific places and punishing them for an incorrect response is wrong.
Softhug, I agree with you that mastiffs are very slow to mature (rather reminds me of my brothers, honestly
) but I don't agree with the spay/neuter at 8-10 months. After talking with our breeder, other breeders and other mastiff owners, the age to consider spay is no earlier than 1 year and neuter no earlier than 18 months. If you do spay/neuter early, you may wind up with a mastiff that doesn't reach it's full growth potential. Mastiff4me, you may want to talk with your breeder about when to spay.