i used to use those jigs when I lived up north with good success.. haven't tried them while swording, but i have dropped a sabiki rig down over 500ft and pulled up 12 inch squid more than a dozen times... ususally snag them I guess...using number 12 hooks that we caught the runners on...
I tried rigging a live one once, and he inked everywhere. I took some floss and put it through the mantle with an 11/0 hook and sent it out.. it took off from the boat quite nicely, but was dead when I reeled it up about 30 minutes later... Is there a better way to rig a live squid?