[Q] Should I return my N6? topic

I got my nexus 6 from CPW on monday, ever since ive been reading every single post on xda about battery, ive flashed and used 4 different roms, different kernals, all the usual apps like greenify. But no matter what i do i cant get more than 3-4 hours of screen time. Ive heard lots of people are getting over 6, while im still in my return stage should i just return and exchange for a new one when they get stock on 19th decemeber? I love this device but want that 6+ hours of screen time lol