I have a 4 year old Percheron/TB cross that I have owned for a little over a year. He was broke in September, after spending 11 months doing ground work with him. He is a sweet dispositioned animal, but has recently become more stubborn about being forward. I want him to move forward willingly, and am fighting all urges to nag him, though this is becoming very frustrating. I have investigated whether or not he could be sore but I do not believe this to be the case.
I am hoping someone has some experience with drafts and draft crosses, and some advice for effective teamwork. I don't want to argue with him anymore! And I don't want to sour him on riding by nagging him.