What would be wrong with mixing my B and E strings as stainless steel and having my A D and G strings nickel? I accidentally tried this and I think I am in love...but I want to double check problems that may pop up in the future. I was going to mix DR Lowriders gauge 125 and 105 with sunbeams of gauges 85, 65, and 45? Does anyone know how well DR does custom orders like such an order? What is the time it takes to ship and how costly will it be?