A: I just purchased these to put up an electric fence for my horses in my back yard. They are horrible. They are flimsy once put in the ground and the metal stud that goes into the ground seems to bend quite easily when you put your foot into the stirrup for placement. They are so unattractive and appear to prove unreliable in the long run that I am going to return them immediately. Steer clear of these. There are better ones out there.
A: For a portable round pen for horse training, no tee post to get injured on in such close quarters. You cold put one of those plastic sleeves over the tee posts, but that would then drive the price up of that option.