Most standard bmx hubs, ie odyssey, colony, mcneil all have relatively weak engagements and not many of them, so no they are no good. Also female axles for the majority of BMX's are still 14mm, so will not fit on a modern trials bike.
The G-Sport ratchet hub sucks, there amazingly over rated and over priced. I have owned two, with-in the first month on owning my first one (bought brand new) the drive side bearing exploded, The second one ratchet got stripped.
I would stick to CK or profile personally.
Oh and on another the profile elitist hubs are no good for trials.