Or you could just wait a couple of months more and see how he reacts to other aggressive dogs, naturally

Just take him on the leash and walk by them or put him on the chain between 2.

If i want a dog to run on a treadmill on its own for 2 houres i'm not going to lure him with toys or food either.

As for starting up dogs in the pit i like to see my dog scratch for the other dog in his first roll, instead of the other dog having to bite him first.

A lot of people want to see signs or roll to early.

Im not saying it doesnt work, im not no oldtimer with tons of experience, just how i think about it atm.