I opted for the original style spark plug wires on my B3B. What makes me question them is how loosely they fit onto the spark plugs. I've tried crimping them this way and that way with a plier but as soon as I push them back onto the plugs they wiggle around just like before. Is this normal? Shouldn't good plug wires snap down and fit tightly? In case I decide to try different wires, has anyone had really good luck with another brand?