Had the same thoughts Gaz,
Nice tight snell (lucky 10 winds) on the terminal hook, but the tie to the main hook is a bit more dubious (2 hitches and a hangmans knot of sorts). Did think of superglue but used the last of it up on my Swimmerz the other day!
Re the action: Any mod is going to effect it I gues so it's always going to be a compromise. My chief concern was the improved chance of snagage!
I enjoy the tinkering, but for the price, it'd be nice if they came with a stinger rig... IMHO.