Well unlike Spookd .. I use 30lb PPro on all my rigger rods and a rod length of mono as the leader/shock absorber tied to a high quality swivel. Got tired of mono breaking when trying to pop the line out of the riggers. The Power Pro has seemed to work well. We've only had one KNOWN fish on that got off... and that was a monster that Jim Krech (owner of Dad's in Temagami) horsed big time from the depths. Redeeming bonus for him was when the big guy got off a smaller eater was trailing and picked up the spoon!
I flat line in the spring with spoons and Rapala TD-11's. 95% of downrigging is done with spoons. Last years best producers were Len Thompson's big one in yellow/red 5 of diamonds and Linquest Brothers Cisco in Perch Pattern. Have every colour Linquest makes to try this year, as well as some new Ken's Custom flutter spoons from California and a big box of spoons I picked up off ebay (Pro King/Dreamweaver and many others).