You did the right thing. I can tell you that 35 yards is on the extreme edge of my effective range and I wouldn't feel real cozy even taking the broadside shot. However, I have killed 3 elk at 40 yards with my bow.
At less than 10 yards I would have taken the facing away shot assuming it was early morning, open country, and a 350 or better bull. There is no doubt I would recover the animal. Go ahead, turn on the flames.