don't get me wrong a torium 20 will still do the job but their anti reverse systems are weak as and in my opinion are certainly not built for the harsh conditions that mechanical jigging puts them through.  i've had mine crap out on me twice - and now whenever i do the drag right up on my torium 20 and pull line off the handle will actually judder back an inch in order for the tiny anti-reverse latchet to clamp on. Also they have a lot of plastic parts in them which to me makes them seem weak.

however if you don't want to thrash it and give it all you've got then they're a great reel...   just not good if you plan on going into serious battle with them. i would not feel confident at all with a 20k king attached to the end of mine - put it that way.   - certainly not saying they can't do stuff like that, because they can and matt watson proved it by catching a marlin on one, but in my mind i have a lot of doubt as to how they perform as a mechanical jigging reel.