Twisty pro's-
-smooth connection to main line
-increased impact absorption
-increased abrasion resistance
Twisty con's-
-increased visibility to finicky fish
Sounds like you're using hollow for your fishing which means the Twisty is more for it's impact and abrasion qualities. Assuming you're fishing at least a 7'6" rod you're going to have at least a 2-2.5m leader before it comes back onto you're reel. My opinion is that is long enough to absorb any strike and if a fish gets you further than that into the rocks then an extra foot or two probably isn't going to help
My preference is the shorter twisty inside the guides but off the reel - which means it's not so short, maybe 2.5m long. My idea behind this is the leader is not as supple as the braid so it may hold it's "loop" shape more readily as it comes off the reel which would make it more likely to snag a guide.
Which brings me to a point i'm not sure of - what usually snags the guide? The one time i've ripped one off it's been the bimini knot, I assume the bimini loop would also do it. Both of those things can be eliminated by splicing a short loop into your JB hollow like Dave does. Also there are two different types of bite leader being mentioned above, one is heavy single strand, the other twisted leader. For bite leader for poppers I twist my twisty back along itself for maybe 200-250mm and then nail knot it in place, for stickbaits i'm making the move away from twisties to pure single strand spliced into hollow.