i have been switching my trebles to siwash for years with good results. heres the way i got em to work. first remove the treble,but leave the snap ring on the plug. next take a size 10 or 12 barrel swivel and thread it on to the snap ring on both the front and rear snap rings. hooks are usually 1/0 or 2/0 open eye siwash types. place the hook on the other end of the barrel swivel (oppisite of snap swivel) and bend the open eye closed. i put hooks on the front and rear snap rings, but you can get away with just the rear hook. the only draw back is that the front hook likes to swing around the shank of the rear hook if your not paying attention. just keep an eye on the plugs when they are being let out. i have noticed that with the double hook set up that fish dont seem to get hooked too deep. anyways thats how i got em to work, and it does not seem to effect the run of the plug.