I have an old level-wind reel loaded with 30-40 lb. mono. Decoy can run if fish takes it. I never rig decoy to a solid point. Never seems to spook the fish and no worries about losing my decoy. If your worried about visibility to the fish, you could use some fluorocarbon leader material in the above mentioned weights. Some guys run a 6'-8' (fluoro) leader attached to a braided line for their decoy rigs.