i see no reason these shouldnt catch fish. most of the harnesses i use are tandem blade and tied with wire line. and they catch alot of fish. i think the worm is the most important part of your harness,LOL. but i do believe color does sometimes makes a big difference. last july we had a day where nuclear green caught 90% of our fish. and my favorite color is anything purple. but after about 4 or 5 fish on the green we started changing a few lures,LOL.
sherman