I think the diffused option is probably the best in my opinion and second best would be the flood option. Personally I would not go with the spot option because that would defeat the purpose of this modification. You want as much spread light output as possible and that's achieved by the diffused and flood lights. But it all really depends on what you are looking for too. I have the diffused and have zero complaints about the output. Sent from my iPhone using Tapatalk