I need to place an order for .100 crimp contacts. I usually get the 4amp phosphor bronze plated crimps from Great Plains Electronics but he's been out for a while now. I am going to place an order with Big Daddy for some stuff. The only ones I see on his site are tin plated brass which GPE's site shows are rated for 2.5 amps. Is 2.5 amps enough to use anywhere on a Bally solid state game or do I need to find someplace that has the 4amp crimps?