I have had one pup that did things that just astonished me...I raised quite a few good ones but none like him at all stages of his life...
sounds like you are going to have yourself one heck of a dog...put him on the game you want before you break him off of rabbits...
I would rather not let them trash on purpose when we can run drags and stage some hunts...at let them work in the bay pen...but it is probably better to let them learn off of off game than not on account they will learn quite a bit...it will just take a little more effort to break them off of off game...
it is sure enough exciting to have a pup do what you have just described your pup doing...that is my drug of choice...

a pup that is born to hunt does not need much direction on account they are born knowing what to do...the real gamey well bred pups tend to start out being a little more trashy...
running deer in my opinion is the worst thing for those type of pups...I usually break that pretty early at home...after that just turn them loose on lots of pig sign or in to the strike ore bay...
I would be excited over a pup like that...especially if bred right and with looks to match...