ok i see these things on the new butterfly jigs and its a new concept to me anyway. not sure how long its been done this way. anyway who can tell me the advantages and disadvantages (if any) to this new setup. does this setup work for salmon as well or is it more targeting the bottom dwellers? looking at the prices on ebay they are spendy, how do you go about cutting the costs if you were to go through multiple setups. these hooks look as though they can run about $7.00 just for two hooks. that would make your average 4 oz crippled herring a 12 dollar jig.