A single shot shotgun and one shell is cheaper than buying a Tri Tronics ecollar...

No argument.

I also have a Mastiff and found that, like others, Tri-Tronics is the best at all kinds of training. And as for costs, I have bought a couple of collars and controllers from seusee.com and the price is very reasonable on that site.

I am so happy that I have a mastiff(120 pound or so) as well.
Sportdog works so well, but the price is not suitable for me.
Generic collars also fit my dog so well and price is cheap.
What's more, present generic ones come with relatively long warranty.

I would also recommend a Tri-Tronics as they are the best collars and they are strong and last longer to train dogs and never get rusted

Newbie here. I really wanted to know how to train my dog for hunting.

Tri-Tronics is a good brand