There are so many things that affect bite. Over or under weight can turn a dog who would bite on a 9 to a 5 in a quick minute.

My Hatchet male will fight a cotton rope for hours on end and will not give an actual hide a second look.

A well conditioned dog who has gas in the tank who bites on a 7 and is still biting on a 7 50-75 minutes in, appears to have way more mouth than the one that starts off at 7-8-9 but tires to a 5 in short order.

Dogs who are strong in the neck and core may be more violent in the shakes which in turn looks like more mouth, more bite strength.

If your dog is starting to work it then tease him a little with it between sets. Get his prey drive steaming and let him have it.

Your job is to make it fun and a big game for him. At 10 months old he should never think he is doing work. It is a mean trick to play on him but it will be well worth the deception later in life. LOL

EWO