Yesterday after about 40 mins of riding him, galloping some , walking, trotting, when I went from a walk to a gallop he bucked a few times and I came off. It didnt at first seem to be harsh enough for me to come off but I did and it wasnt a bad fall or anything, just a slight calf sprain. I tried to hold the reins as I came off but he got loose and went back to the house. I don't have a back strap though I need to get one. I went back to the house which was maybe 100 yds, got him, got back on him and rode some more. I didnt gallop because my buttocks and groin area had just a slight pain. After riding him for about 20 more minutes I lunged him in the area where he bucked. I lunged him in the saddle and bridle for about 10 minutes at a pretty intense pace. He was washed down in sweat when done.
I guess any more pointers you can give me on the bucking will help. I saw the other guys thread but hadnt had time to read it and didnt know what was similiar between my situation and his so I wanted to explain mine.