I suppose it's a matter of preference but I have always found green FO better. I think science supports that we human beans see green more readily than red.I'll shoot in my second match on Sunday which will be more challenging than the first. I'm totally confident in the Tanfo and that makes a difference. I've competed quite extensively with both my 1911 and my SIG P-210 but neither compares to the Tanfo. I love having ten rounds and that big mag funnel!! Both of the other guns required very precise reloads and that was often where I would fumble. Having a purpose built game gun makes a huge difference!!