Rapala recoomend that you attach the line direct to the lure. If you are trolling forget this advice. Always put a swivel and split ring on the lure, otherwise you will spend endless days untangling twisted line. Check your hooks. Some lures come with hooks which would not stop a wet paper bag.
Some ghillies use a lead weight on the line to hook the fish and it works.
The only time I do not use this system is at the beginning of the season when the fishes mouths tend to be soft and no lead is required. That way you have sea room and you keep the fish away from the shore and snags. I have seen salmon crash onto a beach to try to remove a hook. If there is more than one of you in the boat get hold of the rod with the fish on first, then get someone else to reel in the other rods. Try to get the boat upwind of the fish.