The land is in central Texas. We watched some fencers driving posts on the next property and they had no issues other than an occasional rock. Given the size and weight of my tractor, pushing these in slow and steady will be easy using this method. The property consists of mostly sand/clay mixture under the good topsoil. The bucket will be full of t-posts and obviously getting lighter as each post is driven. No, no hammering will be done with the new FEL. I expect a some rock interference but slow and steady will easily show when progress stops and we have to compensate for obstructions. Given the amount we have to do, this beats manual driving.
BTW, if the ground is too dry, tow a water tank with a hose and wet the area being driven first... no need to wait for Mother Nature to soften the gound for ya.