Hounds are not known for ease of training! Don't think I've seen one in obedience trials.
I dont' know a lot about hounds, but I have a dog with a pulling problem too, and I've only recently started to get it under control.
I suggest you get him into an obedience class, with a trainer who understands the breed, if you haven't already. This is also a dog who needs tons of exercise, as you probably know.
If you have any tracking clubs around, I'm sure he would enjoy that greatly,and it would give him a "job" to do.
For the pulling, I suggest a prong collar in conjunction with training.
He's a very beautiful boy!!