I have a similar bucket hitch, but it doesn't work particularly well (at least not with the piranha tooth bar attached on the bucket edge) and it ends up swinging to one side or the other.
I think the fork hitch would be a better bet; I'm somewhat incline to drill one of my fork tines so I can toss a ball into it here and there though getting the right drill bits through that may cost as much as just getting a fork hitch!
I have noticed that driving my wood splitter with the bucket hitch is really funky already - I'd imagine pushing it off-center would be even harder.