Hi Guys,
First time I fished for swordfish the Captain tied all the hooks,even eyed hooks himself with the Snell Knot. This guy was an ex-commercial sword boat Captain who had hands like molegrips, the hooks were 8 and10/0s and the line was 250lb mono.
It would take a video to explain the exact method of tying the Snell Knot but it is sure to be somewhere on the 'net.
I now use this knot for all my hooks below freshwater size 10, and IMO it is the very best for attaching a jig hook to the assist line.
In Europe there are numberous mini machines available for tying non-eyed hooks (called spade end hooks in Euro speak) to low diameter mono for freshwater fishing..........business opportunity for someone in Japan maybe.