He has got some issues from my non educated eye. just got neutered. just finished heartworm treatment and has hump in lower back from treatment but vet said should go away. need 4 month retest to be sure heartworm issue cured. barked at a few dogs that came near him. lots of jumping and energy. I am thinking with training and love can get thru some of my initial impressions...but if he is aggresive towards my baby chili or barks alot, I dont know. only 1 dog has been aggressive to chili and that was a full grown intact pit. guess we will see how saturday goes...