Warrior evo head series or revo head series?

Ok right now im using the answer on the zirconium 7. im looking at getting a new head. i was thinking about getting an evo pro or revo pro or the 2.0 versions of these. which head series is btr tho? evolution or revolution? they r both from warrior and from wat ive read they sound exactly the same. what are the pros and cons of these heads?(first are the revo's or evo's better, and then for those 2 left just wat do they have pros and cons). if anyone can give me some insight into these heads that would be great. i am looking at brine clutch or e3 too but id rather find out about these. thank you anyone who answers.