I went with CGW, you can send one in to trick it out, buy one of theirs already tricked out, or order the parts and trick out your own DIY. Mine breaks at 7.5lbs for double action and 2lbs 15 ounces for single action. I'm sure I could get it lighter on the pull but it is great for me. I know the shadow is a fine weapon but when you can save $200-$300 or more by going with CGW SP-01 without noticeable differences between the two, why not do so and just get more ammo. I have between $750-$800 into my CZ-75 B (cost of the gun and all upgrade parts and it shoots dead nuts every time if I do my part. I say go with CGW but the choice is yours