Hi Nick, thanks for your inquiry.  I'm not sure what you mean by a 'fish finder' set up. Often local descriptions of different rigs etc can see many different names for the same thing.

From your description my guess is you are casting from the shore and you have a breakaway sinker on your mainline with a swivel as a stopper then a trace below it with two hooks. Is that correct? I'll try  and find a pic of a set up like that unless you can post one up?

Thanks for the reply, yes that's it. I've heard that it can also damage the fish when you're reeling it in. Thanks.

Welshnick wrote: Thanks for the reply, yes that's it. I've heard that it can also damage the fish when you're reeling it in. Thanks.

I've used that rig alot when surfcasting on sandy beaches and have never seen any damage on the fish due to a breakaway sinker. Half a pilchard tied on with elastic cotton worked well.